51908808 has 64 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 14760000.

The previous prime is 51908789. The next prime is 51908851. The reversal of 51908808 is 80880915.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41553 + ... + 42783.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 2^51908808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51908808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74511360).

51908808 is an abundant number, since it is smaller than the sum of its proper divisors (97113912).

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

51908808 is a wasteful number, since it uses less digits than its factorization.

51908808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 51908808 is about 7204.7767487966. The cubic root of 51908808 is about 373.0327988083.

The spelling of 51908808 in words is "fifty-one million, nine hundred eight thousand, eight hundred eight".