320523275 has 12 divisors (see below), whose sum is σ = 397750584. Its totient is φ = 256224000.

The previous prime is 320523263. The next prime is 320523289. The reversal of 320523275 is 572325023.

It is a happy number.

It is not a de Polignac number, because 320523275 - 2²⁰ = 319474699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 35195 + ... + 43355.

It is an arithmetic number, because the mean of its divisors is an integer number (33145882).

Almost surely, 2^320523275 is an apocalyptic number.

320523275 is a deficient number, since it is larger than the sum of its proper divisors (77227309).

320523275 is a wasteful number, since it uses less digits than its factorization.

320523275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9742 (or 9737 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 320523275 is about 17903.1638265419. The cubic root of 320523275 is about 684.3630038277.

Adding to 320523275 its reverse (572325023), we get a palindrome (892848298).

The spelling of 320523275 in words is "three hundred twenty million, five hundred twenty-three thousand, two hundred seventy-five".