51306523172 has 24 divisors (see below), whose sum is σ = 89981203200. Its totient is φ = 25597653120.

The previous prime is 51306523139. The next prime is 51306523181. The reversal of 51306523172 is 27132560315.

51306523172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6395708 + ... + 6403724.

It is an arithmetic number, because the mean of its divisors is an integer number (3749216800).

Almost surely, 2^51306523172 is an apocalyptic number.

It is an amenable number.

51306523172 is a deficient number, since it is larger than the sum of its proper divisors (38674680028).

51306523172 is a wasteful number, since it uses less digits than its factorization.

51306523172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11291 (or 11289 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 51306523172 in words is "fifty-one billion, three hundred six million, five hundred twenty-three thousand, one hundred seventy-two".