56404256 has 24 divisors (see below), whose sum is σ = 111928320. Its totient is φ = 27978048.

The previous prime is 56404247. The next prime is 56404273. The reversal of 56404256 is 65240465.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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, 2876 + ... + 11003.

It is an arithmetic number, because the mean of its divisors is an integer number (4663680).

Almost surely, 2^56404256 is an apocalyptic number.

It is an amenable number.

56404256 is a deficient number, since it is larger than the sum of its proper divisors (55524064).

56404256 is a wasteful number, since it uses less digits than its factorization.

56404256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14016 (or 14008 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 56404256 is about 7510.2766926392. The cubic root of 56404256 is about 383.5046419367.

The spelling of 56404256 in words is "fifty-six million, four hundred four thousand, two hundred fifty-six".