325666 has 16 divisors (see below), whose sum is σ = 541728. Its totient is φ = 145600.

The previous prime is 325643. The next prime is 325667. The reversal of 325666 is 666523.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2421 + ... + 2551.

It is an arithmetic number, because the mean of its divisors is an integer number (33858).

2³²⁵⁶⁶⁶ is an apocalyptic number.

325666 is a deficient number, since it is larger than the sum of its proper divisors (216062).

325666 is a wasteful number, since it uses less digits than its factorization.

325666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257.

The product of its digits is 6480, while the sum is 28.

The square root of 325666 is about 570.6715342472. The cubic root of 325666 is about 68.8003752008.

The spelling of 325666 in words is "three hundred twenty-five thousand, six hundred sixty-six".