51164044 has 24 divisors (see below), whose sum is σ = 92272208. Its totient is φ = 24805440.

The previous prime is 51164041. The next prime is 51164051. The reversal of 51164044 is 44046115.

It is not an unprimeable number, because it can be changed into a prime (51164041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77074 + ... + 77734.

Almost surely, 2^51164044 is an apocalyptic number.

It is an amenable number.

51164044 is a deficient number, since it is larger than the sum of its proper divisors (41108164).

51164044 is a wasteful number, since it uses less digits than its factorization.

51164044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 51164044 is about 7152.9045848522. The cubic root of 51164044 is about 371.2401629124.

The spelling of 51164044 in words is "fifty-one million, one hundred sixty-four thousand, forty-four".