56015617790 has 96 divisors (see below), whose sum is σ = 118262259360. Its totient is φ = 19032330240.

The previous prime is 56015617751. The next prime is 56015617817. The reversal of 56015617790 is 9771651065.

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 47 ways as a sum of consecutive naturals, for example, 1661582 + ... + 1694958.

It is an arithmetic number, because the mean of its divisors is an integer number (1231898535).

Almost surely, 2^56015617790 is an apocalyptic number.

56015617790 is an abundant number, since it is smaller than the sum of its proper divisors (62246641570).

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

56015617790 is a wasteful number, since it uses less digits than its factorization.

56015617790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33498 (or 33487 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 47.

The spelling of 56015617790 in words is "fifty-six billion, fifteen million, six hundred seventeen thousand, seven hundred ninety".