51968965 has 16 divisors (see below), whose sum is σ = 63648000. Its totient is φ = 40727232.

The previous prime is 51968963. The next prime is 51968977. The reversal of 51968965 is 56986915.

It is a cyclic number.

It is not a de Polignac number, because 51968965 - 2¹ = 51968963 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 58414 + ... + 59296.

It is an arithmetic number, because the mean of its divisors is an integer number (3978000).

Almost surely, 2^51968965 is an apocalyptic number.

It is an amenable number.

51968965 is a deficient number, since it is larger than the sum of its proper divisors (11679035).

51968965 is a wasteful number, since it uses less digits than its factorization.

51968965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its digits is 583200, while the sum is 49.

The square root of 51968965 is about 7208.9503396819. The cubic root of 51968965 is about 373.1768454660.

It can be divided in two parts, 5196 and 8965, that added together give a square (14161 = 119²).

The spelling of 51968965 in words is "fifty-one million, nine hundred sixty-eight thousand, nine hundred sixty-five".