51373364 has 18 divisors (see below), whose sum is σ = 104581890. Its totient is φ = 22017072.

The previous prime is 51373363. The next prime is 51373373. The reversal of 51373364 is 46337315.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 8076964 = 6580^2 + 2842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51373364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51373363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130859 + ... + 131250.

It is an arithmetic number, because the mean of its divisors is an integer number (5810105).

Almost surely, 2^51373364 is an apocalyptic number.

It is an amenable number.

51373364 is an abundant number, since it is smaller than the sum of its proper divisors (53208526).

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

51373364 is a wasteful number, since it uses less digits than its factorization.

51373364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262127 (or 262118 counting only the distinct ones).

The product of its digits is 22680, while the sum is 32.

The square root of 51373364 is about 7167.5214684018. The cubic root of 51373364 is about 371.7457410049.

The spelling of 51373364 in words is "fifty-one million, three hundred seventy-three thousand, three hundred sixty-four".