51902684 has 12 divisors (see below), whose sum is σ = 91980000. Its totient is φ = 25622688.

The previous prime is 51902647. The next prime is 51902687. The reversal of 51902684 is 48620915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51902687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81809 + ... + 82440.

It is an arithmetic number, because the mean of its divisors is an integer number (7665000).

Almost surely, 2^51902684 is an apocalyptic number.

It is an amenable number.

51902684 is a deficient number, since it is larger than the sum of its proper divisors (40077316).

51902684 is a wasteful number, since it uses less digits than its factorization.

51902684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164332 (or 164330 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 51902684 is about 7204.3517404413. The cubic root of 51902684 is about 373.0181285767.

The spelling of 51902684 in words is "fifty-one million, nine hundred two thousand, six hundred eighty-four".