51345164 has 24 divisors (see below), whose sum is σ = 98358288. Its totient is φ = 23307840.

The previous prime is 51345157. The next prime is 51345169. The reversal of 51345164 is 46154315.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51345169) 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, 4922 + ... + 11265.

It is an arithmetic number, because the mean of its divisors is an integer number (4098262).

Almost surely, 2^51345164 is an apocalyptic number.

It is an amenable number.

51345164 is a deficient number, since it is larger than the sum of its proper divisors (47013124).

51345164 is a wasteful number, since it uses less digits than its factorization.

51345164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16265 (or 16263 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 51345164 is about 7165.5539911440. The cubic root of 51345164 is about 371.6777086770.

Adding to 51345164 its reverse (46154315), we get a palindrome (97499479).

The spelling of 51345164 in words is "fifty-one million, three hundred forty-five thousand, one hundred sixty-four".