51679761 has 12 divisors (see below), whose sum is σ = 80156592. Its totient is φ = 29531208.

The previous prime is 51679741. The next prime is 51679777. The reversal of 51679761 is 16797615.

It is not a de Polignac number, because 51679761 - 2¹⁸ = 51417617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51679741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175635 + ... + 175928.

It is an arithmetic number, because the mean of its divisors is an integer number (6679716).

Almost surely, 2^51679761 is an apocalyptic number.

It is an amenable number.

51679761 is a deficient number, since it is larger than the sum of its proper divisors (28476831).

51679761 is a wasteful number, since it uses less digits than its factorization.

51679761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351580 (or 351573 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 51679761 is about 7188.8636793307. The cubic root of 51679761 is about 372.4833222267.

The spelling of 51679761 in words is "fifty-one million, six hundred seventy-nine thousand, seven hundred sixty-one".