51518968 has 16 divisors (see below), whose sum is σ = 98421480. Its totient is φ = 25273248.

The previous prime is 51518963. The next prime is 51519007. The reversal of 51518968 is 86981515.

51518968 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 not an unprimeable number, because it can be changed into a prime (51518963) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 60330 + ... + 61177.

Almost surely, 2^51518968 is an apocalyptic number.

It is an amenable number.

51518968 is a deficient number, since it is larger than the sum of its proper divisors (46902512).

51518968 is a wasteful number, since it uses less digits than its factorization.

51518968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121566 (or 121562 counting only the distinct ones).

The product of its digits is 86400, while the sum is 43.

The square root of 51518968 is about 7177.6714887211. The cubic root of 51518968 is about 372.0966142088.

The spelling of 51518968 in words is "fifty-one million, five hundred eighteen thousand, nine hundred sixty-eight".