56898080640 has 384 divisors, whose sum is σ = 215748580320. Its totient is φ = 14279639040.

The previous prime is 56898080627. The next prime is 56898080671. The reversal of 56898080640 is 4608089865.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2633080 + ... + 2654600.

Almost surely, 2^56898080640 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 56898080640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107874290160).

56898080640 is an abundant number, since it is smaller than the sum of its proper divisors (158850499680).

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

56898080640 is a wasteful number, since it uses less digits than its factorization.

56898080640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21572 (or 21548 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 56898080640 in words is "fifty-six billion, eight hundred ninety-eight million, eighty thousand, six hundred forty".