56113890810 has 64 divisors (see below), whose sum is σ = 139301904384. Its totient is φ = 14451393600.

The previous prime is 56113890727. The next prime is 56113890823. The reversal of 56113890810 is 1809831165.

It is a super-2 number, since 2×56113890810² (a number of 22 digits) contains 22 as substring.

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, 395187 + ... + 518073.

It is an arithmetic number, because the mean of its divisors is an integer number (2176592256).

Almost surely, 2^56113890810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56113890810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69650952192).

56113890810 is an abundant number, since it is smaller than the sum of its proper divisors (83188013574).

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

56113890810 is a wasteful number, since it uses less digits than its factorization.

56113890810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123419.

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 56113890810 in words is "fifty-six billion, one hundred thirteen million, eight hundred ninety thousand, eight hundred ten".