56311564512 has 192 divisors, whose sum is σ = 175456834560. Its totient is φ = 15477682176.

The previous prime is 56311564453. The next prime is 56311564537. The reversal of 56311564512 is 21546511365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2200173 + ... + 2225619.

It is an arithmetic number, because the mean of its divisors is an integer number (913837680).

Almost surely, 2^56311564512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56311564512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87728417280).

56311564512 is an abundant number, since it is smaller than the sum of its proper divisors (119145270048).

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

56311564512 is a wasteful number, since it uses less digits than its factorization.

56311564512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25593 (or 25585 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The spelling of 56311564512 in words is "fifty-six billion, three hundred eleven million, five hundred sixty-four thousand, five hundred twelve".