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Properties of the Number 55
- Because 55 is not divisible by 2 ...
- 55 is an odd number
- 55 has parity 1
- 55 is not an even number
- Because 55 can be factored as 5 x 11 ...
- 55 is a composite number
- 55 is not a prime number
Alternative Representations of the Number 55
- Base 2 (binary): 110111
- Base 8 (octal): 67
- Base 16 (hexadecimal): 37
Divisors of the Number 55
- 55 has 4 positive divisors:
1, 5, 11, 55
- The sum of the positive divisors is 72
- 55 has 3 proper divisors:
1, 5, 11
- The sum of the proper divisors is 17
- 55 is a deficient number since the sum of the proper divisors is less than 55
- 55 is not a perfect number
- 55 is not an abundant number
More Properties of the Number 55
- 55 is not a square number
- 55 is not a cube number
- 55 is a palindromic number (i.e., the digits are the same forwards and backwards)
- 55 is a Fibonacci number
- 55 is not a Lucas number
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