56120640042 has 32 divisors (see below), whose sum is σ = 113049000000. Its totient is φ = 18572456448.

The previous prime is 56120640019. The next prime is 56120640061. The reversal of 56120640042 is 24004602165.

It is a junction number, because it is equal to n+sod(n) for n = 56120639991 and 56120640009.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152709 + ... + 1200407.

It is an arithmetic number, because the mean of its divisors is an integer number (3532781250).

Almost surely, 2^56120640042 is an apocalyptic number.

56120640042 is an abundant number, since it is smaller than the sum of its proper divisors (56928359958).

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

56120640042 is a wasteful number, since it uses less digits than its factorization.

56120640042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49110.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 56120640042 in words is "fifty-six billion, one hundred twenty million, six hundred forty thousand, forty-two".