51523684 has 27 divisors (see below), whose sum is σ = 93634443. Its totient is φ = 24807168.

The previous prime is 51523673. The next prime is 51523709. The reversal of 51523684 is 48632515.

The square root of 51523684 is 7178.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 7963684 + 43560000 = 2822^2 + 6600^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 531124 + ... + 531220.

Almost surely, 2^51523684 is an apocalyptic number.

51523684 is the 7178-th square number.

It is an amenable number.

51523684 is a deficient number, since it is larger than the sum of its proper divisors (42110759).

51523684 is an equidigital number, since it uses as much as digits as its factorization.

51523684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 136 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The cubic root of 51523684 is about 372.1079676589.

It can be divided in two parts, 5152 and 3684, that added together give a square (8836 = 94²).

The spelling of 51523684 in words is "fifty-one million, five hundred twenty-three thousand, six hundred eighty-four".