51335904 has 48 divisors (see below), whose sum is σ = 135127440. Its totient is φ = 17064960.

The previous prime is 51335899. The next prime is 51335927. The reversal of 51335904 is 40953315.

It is a tau number, because it is divible by the number of its divisors (48).

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, 63052 + ... + 63860.

It is an arithmetic number, because the mean of its divisors is an integer number (2815155).

Almost surely, 2^51335904 is an apocalyptic number.

It is an amenable number.

51335904 is an abundant number, since it is smaller than the sum of its proper divisors (83791536).

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

51335904 is a wasteful number, since it uses less digits than its factorization.

51335904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 51335904 is about 7164.9078151781. The cubic root of 51335904 is about 371.6553635508.

The spelling of 51335904 in words is "fifty-one million, three hundred thirty-five thousand, nine hundred four".