56564973600 has 72 divisors (see below), whose sum is σ = 184118996880. Its totient is φ = 15083992320.

The previous prime is 56564973593. The next prime is 56564973601. The reversal of 56564973600 is 637946565.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56564973601) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11781970 + ... + 11786769.

It is an arithmetic number, because the mean of its divisors is an integer number (2557208290).

Almost surely, 2^56564973600 is an apocalyptic number.

56564973600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56564973600 is an abundant number, since it is smaller than the sum of its proper divisors (127554023280).

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

56564973600 is a wasteful number, since it uses less digits than its factorization.

56564973600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23568762 (or 23568749 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 51.

The spelling of 56564973600 in words is "fifty-six billion, five hundred sixty-four million, nine hundred seventy-three thousand, six hundred".