56515115685 has 16 divisors (see below), whose sum is σ = 103341926016. Its totient is φ = 25835481408.

The previous prime is 56515115659. The next prime is 56515115717. The reversal of 56515115685 is 58651151565.

It is not a de Polignac number, because 56515115685 - 2⁷ = 56515115557 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 269119494 + ... + 269119703.

It is an arithmetic number, because the mean of its divisors is an integer number (6458870376).

Almost surely, 2^56515115685 is an apocalyptic number.

It is an amenable number.

56515115685 is a deficient number, since it is larger than the sum of its proper divisors (46826810331).

56515115685 is a wasteful number, since it uses less digits than its factorization.

56515115685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538239212.

The product of its digits is 900000, while the sum is 48.

The spelling of 56515115685 in words is "fifty-six billion, five hundred fifteen million, one hundred fifteen thousand, six hundred eighty-five".