320500252 has 12 divisors (see below), whose sum is σ = 593868240. Its totient is φ = 150823616.

The previous prime is 320500247. The next prime is 320500261. The reversal of 320500252 is 252005023.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 2356552 + ... + 2356687.

It is an arithmetic number, because the mean of its divisors is an integer number (49489020).

Almost surely, 2^320500252 is an apocalyptic number.

It is an amenable number.

320500252 is a deficient number, since it is larger than the sum of its proper divisors (273367988).

320500252 is a wasteful number, since it uses less digits than its factorization.

320500252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4713260 (or 4713258 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 320500252 is about 17902.5208280845. The cubic root of 320500252 is about 684.3466176368.

Adding to 320500252 its reverse (252005023), we get a palindrome (572505275).

The spelling of 320500252 in words is "three hundred twenty million, five hundred thousand, two hundred fifty-two".