51968964 has 24 divisors (see below), whose sum is σ = 122009440. Its totient is φ = 17216712.

The previous prime is 51968963. The next prime is 51968977. The reversal of 51968964 is 46986915.

It is not an unprimeable number, because it can be changed into a prime (51968963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318747 + ... + 318909.

Almost surely, 2^51968964 is an apocalyptic number.

It is an amenable number.

51968964 is an abundant number, since it is smaller than the sum of its proper divisors (70040476).

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

51968964 is an frugal number, since it uses more digits than its factorization.

51968964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 168 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 51968964 is about 7208.9502703237. The cubic root of 51968964 is about 373.1768430724.

The spelling of 51968964 in words is "fifty-one million, nine hundred sixty-eight thousand, nine hundred sixty-four".