325403321 has 4 divisors (see below), whose sum is σ = 326128500. Its totient is φ = 324678144.

The previous prime is 325403279. The next prime is 325403327. The reversal of 325403321 is 123304523.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 270109225 + 55294096 = 16435^2 + 7436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325403321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325403327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361916 + ... + 362813.

It is an arithmetic number, because the mean of its divisors is an integer number (81532125).

Almost surely, 2^325403321 is an apocalyptic number.

It is an amenable number.

325403321 is a deficient number, since it is larger than the sum of its proper divisors (725179).

325403321 is an equidigital number, since it uses as much as digits as its factorization.

325403321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725178.

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

The square root of 325403321 is about 18038.9390209070. The cubic root of 325403321 is about 687.8187232262.

Adding to 325403321 its reverse (123304523), we get a palindrome (448707844).

The spelling of 325403321 in words is "three hundred twenty-five million, four hundred three thousand, three hundred twenty-one".