The number 55507
55507 is a composite number with 4 divisors. Its prime factorisation is 47 × 1181. Divisors (4): 1, 47, 1181, 55507.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 55507: a semiprime: 47 × 1181, the product of two primes.
- 2
55507 is composite. Its prime factorisation is
- 3
The divisors add up to 56736; without 55507 itself that is 1229, so 55507 is deficient (1229 is less than 55507). Euler's totient φ(55507) = 54280 numbers up to 55507 share no factor with it.
- 4
The digits of 55507 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 114 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55507 = 47 \times 1181 \]
55507 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 56736 |
| Euler totient φ(n) | 54280 |
| Square | 3081027049 |
| Cube | 171018568408843 |
| Square root | 235.599236 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 114 |
| Scientific notation | 5.5507 × |
55507 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand five hundred and seven |
| Binary (base 2) | 1101100011010011 |
| Octal (base 8) | 154323 |
| Hexadecimal (base 16) | D8D3 |
| Base 3 | 2211010211 |
| As time | 55507 seconds = 15 h 25 min 7 s |
Is 55507 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 1) | 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 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55507 a prime number?
No. 55507 = 47 × 1181, so it is divisible by 47.
What are the factors of 55507?
1, 47, 1181, 55507.
What is 55507 in binary?
1101100011010011 (hexadecimal D8D3, octal 154323).
What is the square root of 55507?
About 235.5992.
Is 55507 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 55507?
55507 is a semiprime: 47 × 1181, the product of two primes.