328313025 has 72 divisors (see below), whose sum is σ = 611028600. Its totient is φ = 168376320.

The previous prime is 328313023. The next prime is 328313053. The reversal of 328313025 is 520313823.

328313025 is a `hidden beast` number, since 328 + 31 + 302 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 78641424 + 249671601 = 8868^2 + 15801^2 .

It is not a de Polignac number, because 328313025 - 2¹ = 328313023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328313025.

It is not an unprimeable number, because it can be changed into a prime (328313023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 940551 + ... + 940899.

Almost surely, 2^328313025 is an apocalyptic number.

It is an amenable number.

328313025 is a deficient number, since it is larger than the sum of its proper divisors (282715575).

328313025 is a wasteful number, since it uses less digits than its factorization.

328313025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 328313025 is about 18119.4101725194. The cubic root of 328313025 is about 689.8627641370.

Adding to 328313025 its reverse (520313823), we get a palindrome (848626848).

The spelling of 328313025 in words is "three hundred twenty-eight million, three hundred thirteen thousand, twenty-five".