53831685 has 32 divisors (see below), whose sum is σ = 91031040. Its totient is φ = 27120128.

The previous prime is 53831683. The next prime is 53831749. The reversal of 53831685 is 58613835.

It is not a de Polignac number, because 53831685 - 2¹ = 53831683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53831681) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19129 + ... + 21761.

It is an arithmetic number, because the mean of its divisors is an integer number (2844720).

Almost surely, 2^53831685 is an apocalyptic number.

It is an amenable number.

53831685 is a deficient number, since it is larger than the sum of its proper divisors (37199355).

53831685 is a wasteful number, since it uses less digits than its factorization.

53831685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717.

The product of its digits is 86400, while the sum is 39.

The square root of 53831685 is about 7337.0079051341. The cubic root of 53831685 is about 377.5831958499.

It can be divided in two parts, 538 and 31685, that added together give a palindrome (32223).

The spelling of 53831685 in words is "fifty-three million, eight hundred thirty-one thousand, six hundred eighty-five".