325530221500 has 192 divisors, whose sum is σ = 802429939584. Its totient is φ = 114336000000.

The previous prime is 325530221483. The next prime is 325530221501. The reversal of 325530221500 is 5122035523.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325530221501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22768354 + ... + 22782646.

It is an arithmetic number, because the mean of its divisors is an integer number (4179322602).

Almost surely, 2^325530221500 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 325530221500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401214969792).

325530221500 is an abundant number, since it is smaller than the sum of its proper divisors (476899718084).

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

325530221500 is a wasteful number, since it uses less digits than its factorization.

325530221500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14465 (or 14453 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 325530221500 in words is "three hundred twenty-five billion, five hundred thirty million, two hundred twenty-one thousand, five hundred".