51608988 has 30 divisors (see below), whose sum is σ = 134916936. Its totient is φ = 17202888.

The previous prime is 51608971. The next prime is 51609001. The reversal of 51608988 is 88980615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79320 + ... + 79967.

Almost surely, 2^51608988 is an apocalyptic number.

It is an amenable number.

51608988 is an abundant number, since it is smaller than the sum of its proper divisors (83307948).

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

51608988 is a wasteful number, since it uses less digits than its factorization.

51608988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159303 (or 159292 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 51608988 is about 7183.9395877193. The cubic root of 51608988 is about 372.3132117583.

The spelling of 51608988 in words is "fifty-one million, six hundred eight thousand, nine hundred eighty-eight".