56510111142 has 24 divisors (see below), whose sum is σ = 127761991344. Its totient is φ = 18017716464.

The previous prime is 56510111107. The next prime is 56510111153. The reversal of 56510111142 is 24111101565.

56510111142 is a `hidden beast` number, since 5 + 6 + 510 + 1 + 1 + 1 + 142 = 666.

56510111142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56510111142² (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 11 ways as a sum of consecutive naturals, for example, 68248513 + ... + 68249340.

It is an arithmetic number, because the mean of its divisors is an integer number (5323416306).

Almost surely, 2^56510111142 is an apocalyptic number.

56510111142 is an abundant number, since it is smaller than the sum of its proper divisors (71251880202).

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

56510111142 is a wasteful number, since it uses less digits than its factorization.

56510111142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136497884 (or 136497881 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The spelling of 56510111142 in words is "fifty-six billion, five hundred ten million, one hundred eleven thousand, one hundred forty-two".