325252220 has 24 divisors (see below), whose sum is σ = 697564224. Its totient is φ = 127332416.

The previous prime is 325252201. The next prime is 325252247. The reversal of 325252220 is 22252523.

It is a happy number.

It is a super-2 number, since 2×325252220² = 211578013229856800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172067 + ... + 173946.

It is an arithmetic number, because the mean of its divisors is an integer number (29065176).

Almost surely, 2^325252220 is an apocalyptic number.

It is an amenable number.

325252220 is an abundant number, since it is smaller than the sum of its proper divisors (372312004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325252220 is a wasteful number, since it uses less digits than its factorization.

325252220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346069 (or 346067 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 325252220 is about 18034.7503448204. The cubic root of 325252220 is about 687.7122438912.

The spelling of 325252220 in words is "three hundred twenty-five million, two hundred fifty-two thousand, two hundred twenty".