53644675 has 12 divisors (see below), whose sum is σ = 76022416. Its totient is φ = 36784800.

The previous prime is 53644667. The next prime is 53644691. The reversal of 53644675 is 57644635.

It is not a de Polignac number, because 53644675 - 2³ = 53644667 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153096 + ... + 153445.

Almost surely, 2^53644675 is an apocalyptic number.

53644675 is a deficient number, since it is larger than the sum of its proper divisors (22377741).

53644675 is a wasteful number, since it uses less digits than its factorization.

53644675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306558 (or 306553 counting only the distinct ones).

The product of its digits is 302400, while the sum is 40.

The square root of 53644675 is about 7324.2525215888. The cubic root of 53644675 is about 377.1454501891.

Subtracting from 53644675 its sum of digits (40), we obtain a palindrome (53644635).

The spelling of 53644675 in words is "fifty-three million, six hundred forty-four thousand, six hundred seventy-five".