51632668 has 6 divisors (see below), whose sum is σ = 90357176. Its totient is φ = 25816332.

The previous prime is 51632641. The next prime is 51632683. The reversal of 51632668 is 86623615.

51632668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6454080 + ... + 6454087.

Almost surely, 2^51632668 is an apocalyptic number.

It is an amenable number.

51632668 is a deficient number, since it is larger than the sum of its proper divisors (38724508).

51632668 is a wasteful number, since it uses less digits than its factorization.

51632668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12908171 (or 12908169 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 51632668 is about 7185.5875194726. The cubic root of 51632668 is about 372.3701464714.

The spelling of 51632668 in words is "fifty-one million, six hundred thirty-two thousand, six hundred sixty-eight".