53023686 has 16 divisors (see below), whose sum is σ = 106281984. Its totient is φ = 17635464.

The previous prime is 53023681. The next prime is 53023721. The reversal of 53023686 is 68632035.

It is a super-2 number, since 2×53023686² = 5623022554053192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53023681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6766 + ... + 12321.

It is an arithmetic number, because the mean of its divisors is an integer number (6642624).

Almost surely, 2^53023686 is an apocalyptic number.

53023686 is an abundant number, since it is smaller than the sum of its proper divisors (53258298).

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

53023686 is a wasteful number, since it uses less digits than its factorization.

53023686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19555.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 53023686 is about 7281.7364687278. The cubic root of 53023686 is about 375.6845239339.

The spelling of 53023686 in words is "fifty-three million, twenty-three thousand, six hundred eighty-six".