51173160 has 64 divisors (see below), whose sum is σ = 160202880. Its totient is φ = 13052160.

The previous prime is 51173159. The next prime is 51173173. The reversal of 51173160 is 6137115.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 51173160.

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, 6511 + ... + 12030.

It is an arithmetic number, because the mean of its divisors is an integer number (2503170).

Almost surely, 2^51173160 is an apocalyptic number.

It is an amenable number.

51173160 is an abundant number, since it is smaller than the sum of its proper divisors (109029720).

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

51173160 is a wasteful number, since it uses less digits than its factorization.

51173160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18578 (or 18574 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 51173160 is about 7153.5417801254. The cubic root of 51173160 is about 371.2622098037.

The spelling of 51173160 in words is "fifty-one million, one hundred seventy-three thousand, one hundred sixty".