328219525 has 6 divisors (see below), whose sum is σ = 406992242. Its totient is φ = 262575600.

The previous prime is 328219523. The next prime is 328219597. The reversal of 328219525 is 525912823.

It can be written as a sum of positive squares in 3 ways, for example, as 26224641 + 301994884 = 5121^2 + 17378^2 .

It is not a de Polignac number, because 328219525 - 2¹ = 328219523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328219523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6564366 + ... + 6564415.

Almost surely, 2^328219525 is an apocalyptic number.

It is an amenable number.

328219525 is a deficient number, since it is larger than the sum of its proper divisors (78772717).

328219525 is a wasteful number, since it uses less digits than its factorization.

328219525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13128791 (or 13128786 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 328219525 is about 18116.8298827361. The cubic root of 328219525 is about 689.7972694336.

The spelling of 328219525 in words is "three hundred twenty-eight million, two hundred nineteen thousand, five hundred twenty-five".