51768172 has 12 divisors (see below), whose sum is σ = 91096096. Its totient is φ = 25740720.

The previous prime is 51768139. The next prime is 51768191. The reversal of 51768172 is 27186715.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35028 + ... + 36475.

Almost surely, 2^51768172 is an apocalyptic number.

It is an amenable number.

51768172 is a deficient number, since it is larger than the sum of its proper divisors (39327924).

51768172 is a wasteful number, since it uses less digits than its factorization.

51768172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71688 (or 71686 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 51768172 is about 7195.0102154201. The cubic root of 51768172 is about 372.6956094675.

The spelling of 51768172 in words is "fifty-one million, seven hundred sixty-eight thousand, one hundred seventy-two".