55725256 has 16 divisors (see below), whose sum is σ = 107309340. Its totient is φ = 27109440.

The previous prime is 55725253. The next prime is 55725281. The reversal of 55725256 is 65252755.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42693156 + 13032100 = 6534^2 + 3610^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (55725253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93835 + ... + 94426.

Almost surely, 2^55725256 is an apocalyptic number.

It is an amenable number.

55725256 is a deficient number, since it is larger than the sum of its proper divisors (51584084).

55725256 is a wasteful number, since it uses less digits than its factorization.

55725256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188304 (or 188300 counting only the distinct ones).

The product of its digits is 105000, while the sum is 37.

The square root of 55725256 is about 7464.9350968377. The cubic root of 55725256 is about 381.9595362968.

The spelling of 55725256 in words is "fifty-five million, seven hundred twenty-five thousand, two hundred fifty-six".