56166864 has 40 divisors (see below), whose sum is σ = 156260832. Its totient is φ = 17281920.

The previous prime is 56166853. The next prime is 56166883. The reversal of 56166864 is 46866165.

It is a super-2 number, since 2×56166864² = 6309433223188992, which contains 22 as substring.

56166864 is a modest number, since divided by 6864 gives 5616 as remainder.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44382 + ... + 45629.

Almost surely, 2^56166864 is an apocalyptic number.

It is an amenable number.

56166864 is an abundant number, since it is smaller than the sum of its proper divisors (100093968).

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

56166864 is a wasteful number, since it uses less digits than its factorization.

56166864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90035 (or 90029 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 56166864 is about 7494.4555506054. The cubic root of 56166864 is about 382.9658589732.

The spelling of 56166864 in words is "fifty-six million, one hundred sixty-six thousand, eight hundred sixty-four".