56577556438 has 32 divisors (see below), whose sum is σ = 94914257760. Its totient is φ = 25114091520.

The previous prime is 56577556417. The next prime is 56577556463. The reversal of 56577556438 is 83465577565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47793 + ... + 339763.

It is an arithmetic number, because the mean of its divisors is an integer number (2966070555).

Almost surely, 2^56577556438 is an apocalyptic number.

56577556438 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

56577556438 is a deficient number, since it is larger than the sum of its proper divisors (38336701322).

56577556438 is a wasteful number, since it uses less digits than its factorization.

56577556438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292272.

The product of its digits is 105840000, while the sum is 61.

The spelling of 56577556438 in words is "fifty-six billion, five hundred seventy-seven million, five hundred fifty-six thousand, four hundred thirty-eight".