325233221 has 2 divisors, whose sum is σ = 325233222. Its totient is φ = 325233220.

The previous prime is 325233191. The next prime is 325233229. The reversal of 325233221 is 122332523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199120321 + 126112900 = 14111^2 + 11230^2 .

It is a cyclic number.

It is not a de Polignac number, because 325233221 - 2¹⁰ = 325232197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325233229) 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 as a sum of consecutive naturals, namely, 162616610 + 162616611.

It is an arithmetic number, because the mean of its divisors is an integer number (162616611).

Almost surely, 2^325233221 is an apocalyptic number.

It is an amenable number.

325233221 is a deficient number, since it is larger than the sum of its proper divisors (1).

325233221 is an equidigital number, since it uses as much as digits as its factorization.

325233221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 23.

The square root of 325233221 is about 18034.2236040258. The cubic root of 325233221 is about 687.6988531557.

Adding to 325233221 its reverse (122332523), we get a palindrome (447565744).

The spelling of 325233221 in words is "three hundred twenty-five million, two hundred thirty-three thousand, two hundred twenty-one".