56501928 has 64 divisors (see below), whose sum is σ = 179376000. Its totient is φ = 16142976.

The previous prime is 56501911. The next prime is 56501941. The reversal of 56501928 is 82910565.

It is a happy number.

56501928 is a `hidden beast` number, since 565 + 0 + 1 + 92 + 8 = 666.

56501928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 56501892 and 56501901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17173 + ... + 20196.

It is an arithmetic number, because the mean of its divisors is an integer number (2802750).

Almost surely, 2^56501928 is an apocalyptic number.

It is an amenable number.

56501928 is an abundant number, since it is smaller than the sum of its proper divisors (122874072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56501928 is a wasteful number, since it uses less digits than its factorization.

56501928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37391 (or 37381 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 56501928 is about 7516.7764367447. The cubic root of 56501928 is about 383.7258785816.

The spelling of 56501928 in words is "fifty-six million, five hundred one thousand, nine hundred twenty-eight".