325528520 has 128 divisors (see below), whose sum is σ = 817689600. Its totient is φ = 116121600.

The previous prime is 325528519. The next prime is 325528531. The reversal of 325528520 is 25825523.

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, 965792 + ... + 966128.

It is an arithmetic number, because the mean of its divisors is an integer number (6388200).

Almost surely, 2^325528520 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 325528520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408844800).

325528520 is an abundant number, since it is smaller than the sum of its proper divisors (492161080).

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

325528520 is a wasteful number, since it uses less digits than its factorization.

325528520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 325528520 is about 18042.4089300736. The cubic root of 325528520 is about 687.9069247174.

The spelling of 325528520 in words is "three hundred twenty-five million, five hundred twenty-eight thousand, five hundred twenty".