The number 55475
55475 is a composite number with 12 divisors. Its prime factorisation is × 7 × 317. Divisors (12): 1, 5, 7, 25, 35, 175, 317, 1585, 2219, 7925, 11095, 55475.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55475 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55475 is composite. Its prime factorisation is
- 3
The divisors add up to 78864; without 55475 itself that is 23389, so 55475 is deficient (23389 is less than 55475). Euler's totient φ(55475) = 37920 numbers up to 55475 share no factor with it.
- 4
The digits of 55475 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 153 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55475 = 5^{2} \times 7 \times 317 \]55475 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 78864 |
| Euler totient φ(n) | 37920 |
| Square | 3077475625 |
| Cube | 170722960296875 |
| Square root | 235.531314 (= 5√2219) |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 153 |
| Scientific notation | 5.5475 × |
55475 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand four hundred and seventy-five |
| Binary (base 2) | 1101100010110011 |
| Octal (base 8) | 154263 |
| Hexadecimal (base 16) | D8B3 |
| Base 3 | 2211002122 |
| As time | 55475 seconds = 15 h 24 min 35 s |
Is 55475 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (55475 ÷ 5 = 11095) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (55475 ÷ 7 = 7925) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55475 a prime number?
No. 55475 = × 7 × 317, so it is divisible by 5.
What are the factors of 55475?
1, 5, 7, 25, 35, 175, 317, 1585, 2219, 7925, 11095, 55475.
What is 55475 in binary?
1101100010110011 (hexadecimal D8B3, octal 154263).
What is the square root of 55475?
About 235.5313, exactly 5√2219.
Is 55475 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 55475?
It is a composite number with 12 divisors.