Fifty three
53 is an odd number.
53 is a prime number, which means it is only divisible by 1 and itself.
53 is a Sophie Germain prime, which means that 2 x 53 + 1 = 107 is also a prime number.
In binary, 53 is represented as 110101.
In hex, 53 is represented as 35.
Prime factorization of 53: 53.