51968966 has 16 divisors (see below), whose sum is σ = 94330656. Its totient is φ = 20962176.

The previous prime is 51968963. The next prime is 51968977. The reversal of 51968966 is 66986915.

It is a congruent number.

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, 108941 + ... + 109416.

It is an arithmetic number, because the mean of its divisors is an integer number (5895666).

Almost surely, 2^51968966 is an apocalyptic number.

51968966 is a deficient number, since it is larger than the sum of its proper divisors (42361690).

51968966 is a wasteful number, since it uses less digits than its factorization.

51968966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218383.

The product of its digits is 699840, while the sum is 50.

The square root of 51968966 is about 7208.9504090401. The cubic root of 51968966 is about 373.1768478596.

The spelling of 51968966 in words is "fifty-one million, nine hundred sixty-eight thousand, nine hundred sixty-six".