325806665 has 16 divisors (see below), whose sum is σ = 401376000. Its totient is φ = 253798272.

The previous prime is 325806659. The next prime is 325806667. The reversal of 325806665 is 566608523.

It is a cyclic number.

It is not a de Polignac number, because 325806665 - 2¹⁴ = 325790281 is a prime.

It is a super-2 number, since 2×325806665² = 212299965916844450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (325806667) 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, 23186 + ... + 34484.

It is an arithmetic number, because the mean of its divisors is an integer number (25086000).

Almost surely, 2^325806665 is an apocalyptic number.

It is an amenable number.

325806665 is a deficient number, since it is larger than the sum of its proper divisors (75569335).

325806665 is a wasteful number, since it uses less digits than its factorization.

325806665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11456.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 325806665 is about 18050.1153735925. The cubic root of 325806665 is about 688.1027942957.

The spelling of 325806665 in words is "three hundred twenty-five million, eight hundred six thousand, six hundred sixty-five".