56115550057 has 24 divisors (see below), whose sum is σ = 67744579776. Its totient is φ = 45527461344.

The previous prime is 56115550037. The next prime is 56115550061. The reversal of 56115550057 is 75005551165.

It is not a de Polignac number, because 56115550057 - 2²³ = 56107161449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56115550037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3056098 + ... + 3074404.

It is an arithmetic number, because the mean of its divisors is an integer number (2822690824).

Almost surely, 2^56115550057 is an apocalyptic number.

It is an amenable number.

56115550057 is a deficient number, since it is larger than the sum of its proper divisors (11629029719).

56115550057 is a wasteful number, since it uses less digits than its factorization.

56115550057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19565 (or 19546 counting only the distinct ones).

The product of its (nonzero) digits is 131250, while the sum is 40.

The spelling of 56115550057 in words is "fifty-six billion, one hundred fifteen million, five hundred fifty thousand, fifty-seven".