56916564 has 24 divisors (see below), whose sum is σ = 134097600. Its totient is φ = 18787584.

The previous prime is 56916557. The next prime is 56916583. The reversal of 56916564 is 46561965.

56916564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 21789 + ... + 24260.

It is an arithmetic number, because the mean of its divisors is an integer number (5587400).

Almost surely, 2^56916564 is an apocalyptic number.

It is an amenable number.

56916564 is an abundant number, since it is smaller than the sum of its proper divisors (77181036).

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

56916564 is a wasteful number, since it uses less digits than its factorization.

56916564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46159 (or 46157 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 56916564 is about 7544.3067275927. The cubic root of 56916564 is about 384.6622415815.

The spelling of 56916564 in words is "fifty-six million, nine hundred sixteen thousand, five hundred sixty-four".