The number 55625
55625 is a composite number with 10 divisors. Its prime factorisation is Ć 89. Divisors (10): 1, 5, 25, 89, 125, 445, 625, 2225, 11125, 55625.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55625 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55625 is composite. Its prime factorisation is
- 3
The divisors add up to 70290; without 55625 itself that is 14665, so 55625 is deficient (14665 is less than 55625). Euler's totient Ļ(55625) = 44000 numbers up to 55625 share no factor with it.
- 4
The digits of 55625 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 153 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55625 = 5^{4} \times 89 \]55625 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 10 |
| Sum of divisors | 70290 |
| Euler totient Ļ(n) | 44000 |
| Square | 3094140625 |
| Cube | 172111572265625 |
| Square root | 235.849528 (= 25ā89) |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 153 |
| Scientific notation | 5.5625 Ć |
55625 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand six hundred and twenty-five |
| Binary (base 2) | 1101100101001001 |
| Octal (base 8) | 154511 |
| Hexadecimal (base 16) | D949 |
| Base 3 | 2211022012 |
| As time | 55625 seconds = 15 h 27 min 5 s |
Is 55625 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (55625 Ć· 5 = 11125) | 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 | No (remainder 3) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | 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 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55625 a prime number?
No. 55625 = Ć 89, so it is divisible by 5.
What are the factors of 55625?
1, 5, 25, 89, 125, 445, 625, 2225, 11125, 55625.
What is 55625 in binary?
1101100101001001 (hexadecimal D949, octal 154511).
What is the square root of 55625?
About 235.8495, exactly 25ā89.
Is 55625 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 55625?
It is a composite number with 10 divisors.