51631068 has 24 divisors (see below), whose sum is σ = 120589840. Its totient is φ = 17193600.

The previous prime is 51631061. The next prime is 51631127. The reversal of 51631068 is 86013615.

51631068 is nontrivially palindromic in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51631061) 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, 20418 + ... + 22806.

Almost surely, 2^51631068 is an apocalyptic number.

It is an amenable number.

51631068 is an abundant number, since it is smaller than the sum of its proper divisors (68958772).

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

51631068 is a wasteful number, since it uses less digits than its factorization.

51631068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197 (or 4195 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 51631068 is about 7185.4761846380. The cubic root of 51631068 is about 372.3663000798.

The spelling of 51631068 in words is "fifty-one million, six hundred thirty-one thousand, sixty-eight".