51792165 has 48 divisors (see below), whose sum is σ = 93689856. Its totient is φ = 26438400.

The previous prime is 51792137. The next prime is 51792187. The reversal of 51792165 is 56129715.

It is not a de Polignac number, because 51792165 - 2¹⁴ = 51775781 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

Its product of digits (18900) is a multiple of the sum of its prime factors (450).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190980 + ... + 191250.

It is an arithmetic number, because the mean of its divisors is an integer number (1951872).

Almost surely, 2^51792165 is an apocalyptic number.

It is an amenable number.

51792165 is a deficient number, since it is larger than the sum of its proper divisors (41897691).

51792165 is a wasteful number, since it uses less digits than its factorization.

51792165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 447 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 51792165 is about 7196.6773583370. The cubic root of 51792165 is about 372.7531783321.

The spelling of 51792165 in words is "fifty-one million, seven hundred ninety-two thousand, one hundred sixty-five".