325643565 has 48 divisors (see below), whose sum is σ = 593974080. Its totient is φ = 151856640.

The previous prime is 325643543. The next prime is 325643569. The reversal of 325643565 is 565346523.

It is not a de Polignac number, because 325643565 - 2⁸ = 325643309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325643569) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44785 + ... + 51545.

It is an arithmetic number, because the mean of its divisors is an integer number (12374460).

Almost surely, 2^325643565 is an apocalyptic number.

It is an amenable number.

325643565 is a deficient number, since it is larger than the sum of its proper divisors (268330515).

325643565 is a wasteful number, since it uses less digits than its factorization.

325643565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814 (or 6801 counting only the distinct ones).

The product of its digits is 324000, while the sum is 39.

The square root of 325643565 is about 18045.5968313603. The cubic root of 325643565 is about 687.9879528774.

The spelling of 325643565 in words is "three hundred twenty-five million, six hundred forty-three thousand, five hundred sixty-five".