51902868 has 24 divisors (see below), whose sum is σ = 122063872. Its totient is φ = 17164224.

The previous prime is 51902867. The next prime is 51902909. The reversal of 51902868 is 86820915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51902867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15505 + ... + 18552.

Almost surely, 2^51902868 is an apocalyptic number.

It is an amenable number.

51902868 is an abundant number, since it is smaller than the sum of its proper divisors (70161004).

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

51902868 is a wasteful number, since it uses less digits than its factorization.

51902868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34191 (or 34189 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 51902868 is about 7204.3645104895. The cubic root of 51902868 is about 373.0185693712.

The spelling of 51902868 in words is "fifty-one million, nine hundred two thousand, eight hundred sixty-eight".