56111551110 has 24 divisors (see below), whose sum is σ = 145890033120. Its totient is φ = 14963080272.

The previous prime is 56111551057. The next prime is 56111551129. The reversal of 56111551110 is 1115511165.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311730750 + ... + 311730929.

It is an arithmetic number, because the mean of its divisors is an integer number (6078751380).

Almost surely, 2^56111551110 is an apocalyptic number.

56111551110 is an abundant number, since it is smaller than the sum of its proper divisors (89778482010).

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

56111551110 is a wasteful number, since it uses less digits than its factorization.

56111551110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623461692 (or 623461689 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 27.

The spelling of 56111551110 in words is "fifty-six billion, one hundred eleven million, five hundred fifty-one thousand, one hundred ten".