51660528 has 40 divisors (see below), whose sum is σ = 135074688. Its totient is φ = 17011392.

The previous prime is 51660517. The next prime is 51660559. The reversal of 51660528 is 82506615.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2500 + ... + 10467.

Almost surely, 2^51660528 is an apocalyptic number.

It is an amenable number.

51660528 is an abundant number, since it is smaller than the sum of its proper divisors (83414160).

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

51660528 is a wasteful number, since it uses less digits than its factorization.

51660528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13061 (or 13055 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 51660528 is about 7187.5258608230. The cubic root of 51660528 is about 372.4371090317.

The spelling of 51660528 in words is "fifty-one million, six hundred sixty thousand, five hundred twenty-eight".