328481525 has 6 divisors (see below), whose sum is σ = 407317122. Its totient is φ = 262785200.

The previous prime is 328481513. The next prime is 328481533. The reversal of 328481525 is 525184823.

It can be written as a sum of positive squares in 3 ways, for example, as 43850884 + 284630641 = 6622^2 + 16871^2 .

It is not a de Polignac number, because 328481525 - 2⁴ = 328481509 is a prime.

It is a super-2 number, since 2×328481525² = 215800224532651250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6569606 + ... + 6569655.

It is an arithmetic number, because the mean of its divisors is an integer number (67886187).

Almost surely, 2^328481525 is an apocalyptic number.

It is an amenable number.

328481525 is a deficient number, since it is larger than the sum of its proper divisors (78835597).

328481525 is a wasteful number, since it uses less digits than its factorization.

328481525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13139271 (or 13139266 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 328481525 is about 18124.0592859326. The cubic root of 328481525 is about 689.9807633088.

The spelling of 328481525 in words is "three hundred twenty-eight million, four hundred eighty-one thousand, five hundred twenty-five".