53643325 has 12 divisors (see below), whose sum is σ = 66611188. Its totient is φ = 42854400.

The previous prime is 53643283. The next prime is 53643341. The reversal of 53643325 is 52334635.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6775609 + 46867716 = 2603^2 + 6846^2 .

It is not a de Polignac number, because 53643325 - 2⁷ = 53643197 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent 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, 27895 + ... + 29755.

Almost surely, 2^53643325 is an apocalyptic number.

It is an amenable number.

53643325 is a deficient number, since it is larger than the sum of its proper divisors (12967863).

53643325 is a wasteful number, since it uses less digits than its factorization.

53643325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024 (or 3019 counting only the distinct ones).

The product of its digits is 32400, while the sum is 31.

The square root of 53643325 is about 7324.1603614339. The cubic root of 53643325 is about 377.1422864664.

The spelling of 53643325 in words is "fifty-three million, six hundred forty-three thousand, three hundred twenty-five".