56571870936 has 64 divisors (see below), whose sum is σ = 161653190400. Its totient is φ = 16161464448.

The previous prime is 56571870931. The next prime is 56571870941. The reversal of 56571870936 is 63907817565.

It is an interprime number because it is at equal distance from previous prime (56571870931) and next prime (56571870941).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56571870931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1990635 + ... + 2018853.

It is an arithmetic number, because the mean of its divisors is an integer number (2525831100).

Almost surely, 2^56571870936 is an apocalyptic number.

56571870936 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56571870936 is an abundant number, since it is smaller than the sum of its proper divisors (105081319464).

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

56571870936 is a wasteful number, since it uses less digits than its factorization.

56571870936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40168 (or 40164 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 56571870936 in words is "fifty-six billion, five hundred seventy-one million, eight hundred seventy thousand, nine hundred thirty-six".