56565872544 has 192 divisors, whose sum is σ = 154409891328. Its totient is φ = 18119808000.

The previous prime is 56565872533. The next prime is 56565872557. The reversal of 56565872544 is 44527856565.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87971487 + ... + 87972129.

It is an arithmetic number, because the mean of its divisors is an integer number (804218184).

Almost surely, 2^56565872544 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 56565872544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77204945664).

56565872544 is an abundant number, since it is smaller than the sum of its proper divisors (97844018784).

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

56565872544 is a wasteful number, since it uses less digits than its factorization.

56565872544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1003 counting only the distinct ones).

The product of its digits is 40320000, while the sum is 57.

The spelling of 56565872544 in words is "fifty-six billion, five hundred sixty-five million, eight hundred seventy-two thousand, five hundred forty-four".