325866520 has 64 divisors (see below), whose sum is σ = 839810880. Its totient is φ = 111476736.

The previous prime is 325866487. The next prime is 325866571. The reversal of 325866520 is 25668523.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 325866520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160552 + ... + 162568.

It is an arithmetic number, because the mean of its divisors is an integer number (13122045).

Almost surely, 2^325866520 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 325866520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419905440).

325866520 is an abundant number, since it is smaller than the sum of its proper divisors (513944360).

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

325866520 is a wasteful number, since it uses less digits than its factorization.

325866520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2608 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 325866520 is about 18051.7733200924. The cubic root of 325866520 is about 688.1449295815.

The spelling of 325866520 in words is "three hundred twenty-five million, eight hundred sixty-six thousand, five hundred twenty".