51793164 has 36 divisors (see below), whose sum is σ = 137814040. Its totient is φ = 16355520.

The previous prime is 51793163. The next prime is 51793177. The reversal of 51793164 is 46139715.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (51793163) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 37177 + ... + 38544.

Almost surely, 2^51793164 is an apocalyptic number.

It is an amenable number.

51793164 is an abundant number, since it is smaller than the sum of its proper divisors (86020876).

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

51793164 is a wasteful number, since it uses less digits than its factorization.

51793164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75750 (or 75745 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 51793164 is about 7196.7467650321. The cubic root of 51793164 is about 372.7555749496.

The spelling of 51793164 in words is "fifty-one million, seven hundred ninety-three thousand, one hundred sixty-four".