325517472 has 144 divisors (see below), whose sum is σ = 1075681152. Its totient is φ = 91445760.

The previous prime is 325517471. The next prime is 325517497. The reversal of 325517472 is 274715523.

325517472 is a `hidden beast` number, since 32 + 551 + 7 + 4 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325517471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121653 + ... + 124299.

It is an arithmetic number, because the mean of its divisors is an integer number (7470008).

Almost surely, 2^325517472 is an apocalyptic number.

325517472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325517472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537840576).

325517472 is an abundant number, since it is smaller than the sum of its proper divisors (750163680).

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

325517472 is a wasteful number, since it uses less digits than its factorization.

325517472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731 (or 2720 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 325517472 is about 18042.1027599335. The cubic root of 325517472 is about 687.8991424176.

The spelling of 325517472 in words is "three hundred twenty-five million, five hundred seventeen thousand, four hundred seventy-two".