56508990720 has 1152 divisors, whose sum is σ = 237352550400. Its totient is φ = 11133517824.

The previous prime is 56508990701. The next prime is 56508990737. The reversal of 56508990720 is 2709980565.

It is a happy number.

It is a super-2 number, since 2×56508990720² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 634932436 + ... + 634932524.

It is an arithmetic number, because the mean of its divisors is an integer number (206035200).

Almost surely, 2^56508990720 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 56508990720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118676275200).

56508990720 is an abundant number, since it is smaller than the sum of its proper divisors (180843559680).

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

56508990720 is a wasteful number, since it uses less digits than its factorization.

56508990720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 56508990720 in words is "fifty-six billion, five hundred eight million, nine hundred ninety thousand, seven hundred twenty".