325221311 has 16 divisors (see below), whose sum is σ = 343816704. Its totient is φ = 307030944.

The previous prime is 325221277. The next prime is 325221319. The reversal of 325221311 is 113122523.

It is a cyclic number.

It is not a de Polignac number, because 325221311 - 2²⁶ = 258112447 is a prime.

It is a super-2 number, since 2×325221311² = 211537802257117442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325221319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871721 + ... + 872093.

It is an arithmetic number, because the mean of its divisors is an integer number (21488544).

Almost surely, 2^325221311 is an apocalyptic number.

325221311 is a deficient number, since it is larger than the sum of its proper divisors (18595393).

325221311 is a wasteful number, since it uses less digits than its factorization.

325221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its digits is 360, while the sum is 20.

The square root of 325221311 is about 18033.8933954928. The cubic root of 325221311 is about 687.6904585711.

Adding to 325221311 its reverse (113122523), we get a palindrome (438343834).

It can be divided in two parts, 32522 and 1311, that added together give a palindrome (33833).

The spelling of 325221311 in words is "three hundred twenty-five million, two hundred twenty-one thousand, three hundred eleven".