53243325 has 30 divisors (see below), whose sum is σ = 98628794. Its totient is φ = 28395360.

The previous prime is 53243279. The next prime is 53243327. The reversal of 53243325 is 52334235.

53243325 is a `hidden beast` number, since 5 + 324 + 332 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 16990884 + 36252441 = 4122^2 + 6021^2 .

It is not a de Polignac number, because 53243325 - 2¹² = 53239229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53243327) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 11122 + ... + 15171.

Almost surely, 2^53243325 is an apocalyptic number.

It is an amenable number.

53243325 is a deficient number, since it is larger than the sum of its proper divisors (45385469).

53243325 is a wasteful number, since it uses less digits than its factorization.

53243325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26315 (or 26301 counting only the distinct ones).

The product of its digits is 10800, while the sum is 27.

The square root of 53243325 is about 7296.8023818656. The cubic root of 53243325 is about 376.2025396073.

It can be divided in two parts, 5324 and 3325, that added together give a square (8649 = 93²).

The spelling of 53243325 in words is "fifty-three million, two hundred forty-three thousand, three hundred twenty-five".