51808674 has 32 divisors (see below), whose sum is σ = 108576000. Its totient is φ = 16458624.

The previous prime is 51808643. The next prime is 51808697. The reversal of 51808674 is 47680815.

51808674 = 237² + 238² + ... + 552².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11862 + ... + 15630.

It is an arithmetic number, because the mean of its divisors is an integer number (3393000).

Almost surely, 2^51808674 is an apocalyptic number.

51808674 is an abundant number, since it is smaller than the sum of its proper divisors (56767326).

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

51808674 is a wasteful number, since it uses less digits than its factorization.

51808674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 51808674 is about 7197.8242545925. The cubic root of 51808674 is about 372.7927797434.

The spelling of 51808674 in words is "fifty-one million, eight hundred eight thousand, six hundred seventy-four".