56657478801 has 32 divisors (see below), whose sum is σ = 94197021696. Its totient is φ = 29428344000.

The previous prime is 56657478799. The next prime is 56657478803. The reversal of 56657478801 is 10887475665.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56657478799) and next prime (56657478803).

It is not a de Polignac number, because 56657478801 - 2¹ = 56657478799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56657478803) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2339766 + ... + 2363856.

It is an arithmetic number, because the mean of its divisors is an integer number (2943656928).

Almost surely, 2^56657478801 is an apocalyptic number.

It is an amenable number.

56657478801 is a deficient number, since it is larger than the sum of its proper divisors (37539542895).

56657478801 is a wasteful number, since it uses less digits than its factorization.

56657478801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34293.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 56657478801 in words is "fifty-six billion, six hundred fifty-seven million, four hundred seventy-eight thousand, eight hundred one".