56564896828 has 12 divisors (see below), whose sum is σ = 107987530392. Its totient is φ = 25711316720.

The previous prime is 56564896811. The next prime is 56564896849. The reversal of 56564896828 is 82869846565.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642782875 + ... + 642782962.

It is an arithmetic number, because the mean of its divisors is an integer number (8998960866).

Almost surely, 2^56564896828 is an apocalyptic number.

It is an amenable number.

56564896828 is a deficient number, since it is larger than the sum of its proper divisors (51422633564).

56564896828 is a wasteful number, since it uses less digits than its factorization.

56564896828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285565852 (or 1285565850 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 67.

The spelling of 56564896828 in words is "fifty-six billion, five hundred sixty-four million, eight hundred ninety-six thousand, eight hundred twenty-eight".