325889666 has 12 divisors (see below), whose sum is σ = 495638802. Its totient is φ = 160707456.

The previous prime is 325889651. The next prime is 325889713. The reversal of 325889666 is 666988523.

It can be written as a sum of positive squares in 3 ways, for example, as 276257641 + 49632025 = 16621^2 + 7045^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4631 + ... + 25946.

Almost surely, 2^325889666 is an apocalyptic number.

325889666 is a deficient number, since it is larger than the sum of its proper divisors (169749136).

325889666 is an equidigital number, since it uses as much as digits as its factorization.

325889666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30725 (or 30652 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 325889666 is about 18052.4144091587. The cubic root of 325889666 is about 688.1612219635.

The spelling of 325889666 in words is "three hundred twenty-five million, eight hundred eighty-nine thousand, six hundred sixty-six".