56776868 has 12 divisors (see below), whose sum is σ = 99546972. Its totient is φ = 28334880.

The previous prime is 56776859. The next prime is 56776871. The reversal of 56776868 is 86867765.

It can be written as a sum of positive squares in 2 ways, for example, as 14500864 + 42276004 = 3808^2 + 6502^2 .

It is a super-2 number, since 2×56776868² = 6447225479778848, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 10955 + ... + 15282.

It is an arithmetic number, because the mean of its divisors is an integer number (8295581).

Almost surely, 2^56776868 is an apocalyptic number.

It is an amenable number.

56776868 is a deficient number, since it is larger than the sum of its proper divisors (42770104).

56776868 is a wasteful number, since it uses less digits than its factorization.

56776868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26782 (or 26780 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The square root of 56776868 is about 7535.0426674306. The cubic root of 56776868 is about 384.3472787904.

The spelling of 56776868 in words is "fifty-six million, seven hundred seventy-six thousand, eight hundred sixty-eight".