51166172 has 6 divisors (see below), whose sum is σ = 89540808. Its totient is φ = 25583084.

The previous prime is 51166169. The next prime is 51166201. The reversal of 51166172 is 27166115.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6395768 + ... + 6395775.

It is an arithmetic number, because the mean of its divisors is an integer number (14923468).

Almost surely, 2^51166172 is an apocalyptic number.

It is an amenable number.

51166172 is a deficient number, since it is larger than the sum of its proper divisors (38374636).

51166172 is a wasteful number, since it uses less digits than its factorization.

51166172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12791547 (or 12791545 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 51166172 is about 7153.0533340665. The cubic root of 51166172 is about 371.2453096786.

The spelling of 51166172 in words is "fifty-one million, one hundred sixty-six thousand, one hundred seventy-two".