320422325 has 12 divisors (see below), whose sum is σ = 403839108. Its totient is φ = 252134400.

The previous prime is 320422321. The next prime is 320422337. The reversal of 320422325 is 523224023.

It can be written as a sum of positive squares in 6 ways, for example, as 21893041 + 298529284 = 4679^2 + 17278^2 .

It is not a de Polignac number, because 320422325 - 2² = 320422321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320422325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320422321) 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 11 ways as a sum of consecutive naturals, for example, 103532 + ... + 106581.

It is an arithmetic number, because the mean of its divisors is an integer number (33653259).

Almost surely, 2^320422325 is an apocalyptic number.

It is an amenable number.

320422325 is a deficient number, since it is larger than the sum of its proper divisors (83416783).

320422325 is a wasteful number, since it uses less digits than its factorization.

320422325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210184 (or 210179 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 320422325 is about 17900.3442704323. The cubic root of 320422325 is about 684.2911487240.

Adding to 320422325 its reverse (523224023), we get a palindrome (843646348).

The spelling of 320422325 in words is "three hundred twenty million, four hundred twenty-two thousand, three hundred twenty-five".