The number 50551
50551 is a twin prime (50549 and 50551 are both prime) and the 5186th prime number. Its only divisors are 1 and 50551.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50551: a twin prime (50549 and 50551 are both prime); the 5186th prime number.
- 2
50551 is prime, so its only factors are 1 and 50551. It is the 5186th prime; the next prime is 50581 and the one before is 50549.
- 3
The divisors add up to 50552; without 50551 itself that is 1, so 50551 is deficient (1 is less than 50551). Euler's totient φ(50551) = 50550 numbers up to 50551 share no factor with it.
- 4
The digits of 50551 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
50551 at a glance
| Property | Value |
|---|---|
| Type | prime |
| Number of divisors | 2 |
| Sum of divisors | 50552 |
| Euler totient φ(n) | 50550 |
| Square | 2555403601 |
| Cube | 129178207434151 |
| Square root | 224.835495 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 65 |
| Scientific notation | 5.0551 × |
50551 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand five hundred and fifty-one |
| Binary (base 2) | 1100010101110111 |
| Octal (base 8) | 142567 |
| Hexadecimal (base 16) | C577 |
| Base 3 | 2120100021 |
| As time | 50551 seconds = 14 h 2 min 31 s |
Is 50551 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 1) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | 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 50551 a prime number?
Yes. 50551 is divisible only by 1 and itself.
What are the factors of 50551?
1, 50551.
What is 50551 in binary?
1100010101110111 (hexadecimal C577, octal 142567).
What is the square root of 50551?
About 224.8355.
Is 50551 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 50551?
50551 is a twin prime (50549 and 50551 are both prime); the 5186th prime number.