51939304 has 16 divisors (see below), whose sum is σ = 98983620. Its totient is φ = 25543680.

The previous prime is 51939299. The next prime is 51939323. The reversal of 51939304 is 40393915.

It can be written as a sum of positive squares in 2 ways, for example, as 49984900 + 1954404 = 7070^2 + 1398^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51939304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52729 + ... + 53704.

Almost surely, 2^51939304 is an apocalyptic number.

It is an amenable number.

51939304 is a deficient number, since it is larger than the sum of its proper divisors (47044316).

51939304 is a wasteful number, since it uses less digits than its factorization.

51939304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106500 (or 106496 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 51939304 is about 7206.8928117463. The cubic root of 51939304 is about 373.1058357464.

The spelling of 51939304 in words is "fifty-one million, nine hundred thirty-nine thousand, three hundred four".