325515320 has 128 divisors (see below), whose sum is σ = 872000640. Its totient is φ = 108134400.

The previous prime is 325515319. The next prime is 325515341. The reversal of 325515320 is 23515523.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 325515320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202520 + ... + 204120.

It is an arithmetic number, because the mean of its divisors is an integer number (6812505).

Almost surely, 2^325515320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325515320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436000320).

325515320 is an abundant number, since it is smaller than the sum of its proper divisors (546485320).

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

325515320 is a wasteful number, since it uses less digits than its factorization.

325515320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 325515320 is about 18042.0431215536. The cubic root of 325515320 is about 687.8976265110.

The spelling of 325515320 in words is "three hundred twenty-five million, five hundred fifteen thousand, three hundred twenty".