53686856 has 16 divisors (see below), whose sum is σ = 105961200. Its totient is φ = 25430544.

The previous prime is 53686849. The next prime is 53686907. The reversal of 53686856 is 65868635.

It is a self number, because there is not a number n which added to its sum of digits gives 53686856.

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 3 ways as a sum of consecutive naturals, for example, 176450 + ... + 176753.

It is an arithmetic number, because the mean of its divisors is an integer number (6622575).

Almost surely, 2^53686856 is an apocalyptic number.

It is an amenable number.

53686856 is a deficient number, since it is larger than the sum of its proper divisors (52274344).

53686856 is a wasteful number, since it uses less digits than its factorization.

53686856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353228 (or 353224 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 53686856 is about 7327.1314987517. The cubic root of 53686856 is about 377.2442745641.

The spelling of 53686856 in words is "fifty-three million, six hundred eighty-six thousand, eight hundred fifty-six".