328525291 has 2 divisors, whose sum is σ = 328525292. Its totient is φ = 328525290.

The previous prime is 328525279. The next prime is 328525313. The reversal of 328525291 is 192525823.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 328525291 - 2¹³ = 328517099 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328525291.

It is not a weakly prime, because it can be changed into another prime (328525201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164262645 + 164262646.

It is an arithmetic number, because the mean of its divisors is an integer number (164262646).

Almost surely, 2^328525291 is an apocalyptic number.

328525291 is a deficient number, since it is larger than the sum of its proper divisors (1).

328525291 is an equidigital number, since it uses as much as digits as its factorization.

328525291 is an odious number, because the sum of its binary digits is odd.

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

The square root of 328525291 is about 18125.2666463145. The cubic root of 328525291 is about 690.0114056786.

The spelling of 328525291 in words is "three hundred twenty-eight million, five hundred twenty-five thousand, two hundred ninety-one".