51779604 has 24 divisors (see below), whose sum is σ = 120964480. Its totient is φ = 17239104.

The previous prime is 51779599. The next prime is 51779621. The reversal of 51779604 is 40697715.

It is a super-2 number, since 2×51779604² = 5362254780793632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10392 + ... + 14544.

Almost surely, 2^51779604 is an apocalyptic number.

It is an amenable number.

51779604 is an abundant number, since it is smaller than the sum of its proper divisors (69184876).

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

51779604 is a wasteful number, since it uses less digits than its factorization.

51779604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199 (or 5197 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 51779604 is about 7195.8046110216. The cubic root of 51779604 is about 372.7230416551.

The spelling of 51779604 in words is "fifty-one million, seven hundred seventy-nine thousand, six hundred four".