53644625 has 32 divisors (see below), whose sum is σ = 71525376. Its totient is φ = 40075200.

The previous prime is 53644597. The next prime is 53644627. The reversal of 53644625 is 52644635.

It is a happy number.

It is not a de Polignac number, because 53644625 - 2¹⁸ = 53382481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134927 + ... + 135323.

It is an arithmetic number, because the mean of its divisors is an integer number (2235168).

Almost surely, 2^53644625 is an apocalyptic number.

It is an amenable number.

53644625 is a deficient number, since it is larger than the sum of its proper divisors (17880751).

53644625 is a wasteful number, since it uses less digits than its factorization.

53644625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 472 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 53644625 is about 7324.2491082704. The cubic root of 53644625 is about 377.1453330151.

The spelling of 53644625 in words is "fifty-three million, six hundred forty-four thousand, six hundred twenty-five".