55956728 has 16 divisors (see below), whose sum is σ = 107755080. Its totient is φ = 27222048.

The previous prime is 55956713. The next prime is 55956731. The reversal of 55956728 is 82765955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94226 + ... + 94817.

Almost surely, 2^55956728 is an apocalyptic number.

It is an amenable number.

55956728 is a deficient number, since it is larger than the sum of its proper divisors (51798352).

55956728 is a wasteful number, since it uses less digits than its factorization.

55956728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189086 (or 189082 counting only the distinct ones).

The product of its digits is 756000, while the sum is 47.

The square root of 55956728 is about 7480.4229826929. The cubic root of 55956728 is about 382.4876678781.

The spelling of 55956728 in words is "fifty-five million, nine hundred fifty-six thousand, seven hundred twenty-eight".