53686870 has 16 divisors (see below), whose sum is σ = 96720480. Its totient is φ = 21456064.

The previous prime is 53686849. The next prime is 53686907. The reversal of 53686870 is 7868635.

53686870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19074 + ... + 21706.

It is an arithmetic number, because the mean of its divisors is an integer number (6045030).

Almost surely, 2^53686870 is an apocalyptic number.

53686870 is a deficient number, since it is larger than the sum of its proper divisors (43033610).

53686870 is a wasteful number, since it uses less digits than its factorization.

53686870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 53686870 is about 7327.1324541051. The cubic root of 53686870 is about 377.2443073557.

The spelling of 53686870 in words is "fifty-three million, six hundred eighty-six thousand, eight hundred seventy".