51660316 has 12 divisors (see below), whose sum is σ = 95163880. Its totient is φ = 24470640.

The previous prime is 51660307. The next prime is 51660359. The reversal of 51660316 is 61306615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339795 + ... + 339946.

Almost surely, 2^51660316 is an apocalyptic number.

It is an amenable number.

51660316 is a deficient number, since it is larger than the sum of its proper divisors (43503564).

51660316 is a wasteful number, since it uses less digits than its factorization.

51660316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679764 (or 679762 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 51660316 is about 7187.5111130349. The cubic root of 51660316 is about 372.4365995726.

The spelling of 51660316 in words is "fifty-one million, six hundred sixty thousand, three hundred sixteen".