51912968 has 16 divisors (see below), whose sum is σ = 103062780. Its totient is φ = 24429568.

The previous prime is 51912967. The next prime is 51912977. The reversal of 51912968 is 86921915.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40475044 + 11437924 = 6362^2 + 3382^2 .

It is not an unprimeable number, because it can be changed into a prime (51912967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190721 + ... + 190992.

Almost surely, 2^51912968 is an apocalyptic number.

It is an amenable number.

51912968 is a deficient number, since it is larger than the sum of its proper divisors (51149812).

51912968 is a wasteful number, since it uses less digits than its factorization.

51912968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381736 (or 381732 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 51912968 is about 7205.0654403690. The cubic root of 51912968 is about 373.0427635590.

The spelling of 51912968 in words is "fifty-one million, nine hundred twelve thousand, nine hundred sixty-eight".