53023685 has 16 divisors (see below), whose sum is σ = 74753280. Its totient is φ = 35595840.

The previous prime is 53023681. The next prime is 53023721. The reversal of 53023685 is 58632035.

It is not a de Polignac number, because 53023685 - 2² = 53023681 is a prime.

It is a super-2 number, since 2×53023685² = 5623022341958450, which contains 22 as substring.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 36365 + ... + 37794.

It is an arithmetic number, because the mean of its divisors is an integer number (4672080).

Almost surely, 2^53023685 is an apocalyptic number.

53023685 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53023685 is a deficient number, since it is larger than the sum of its proper divisors (21729595).

53023685 is a wasteful number, since it uses less digits than its factorization.

53023685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74188.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 53023685 is about 7281.7364000628. The cubic root of 53023685 is about 375.6845215721.

The spelling of 53023685 in words is "fifty-three million, twenty-three thousand, six hundred eighty-five".