325188865 has 16 divisors (see below), whose sum is σ = 397470096. Its totient is φ = 255340800.

The previous prime is 325188863. The next prime is 325188883. The reversal of 325188865 is 568881523.

It can be written as a sum of positive squares in 8 ways, for example, as 7529536 + 317659329 = 2744^2 + 17823^2 .

It is not a de Polignac number, because 325188865 - 2¹ = 325188863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325188863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200799 + ... + 202411.

It is an arithmetic number, because the mean of its divisors is an integer number (24841881).

Almost surely, 2^325188865 is an apocalyptic number.

It is an amenable number.

325188865 is a deficient number, since it is larger than the sum of its proper divisors (72281231).

325188865 is a wasteful number, since it uses less digits than its factorization.

325188865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340.

The product of its digits is 460800, while the sum is 46.

The square root of 325188865 is about 18032.9937891632. The cubic root of 325188865 is about 687.6675884558.

The spelling of 325188865 in words is "three hundred twenty-five million, one hundred eighty-eight thousand, eight hundred sixty-five".