56089722880 has 120 divisors (see below), whose sum is σ = 137750370912. Its totient is φ = 21912748032.

The previous prime is 56089722859. The next prime is 56089722919. The reversal of 56089722880 is 8822798065.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3514599 + ... + 3530521.

Almost surely, 2^56089722880 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 56089722880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68875185456).

56089722880 is an abundant number, since it is smaller than the sum of its proper divisors (81660648032).

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

56089722880 is an equidigital number, since it uses as much as digits as its factorization.

56089722880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15999 (or 15973 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 56089722880 in words is "fifty-six billion, eighty-nine million, seven hundred twenty-two thousand, eight hundred eighty".