320255825 has 12 divisors (see below), whose sum is σ = 397533708. Its totient is φ = 255936000.

The previous prime is 320255821. The next prime is 320255833. The reversal of 320255825 is 528552023.

It can be written as a sum of positive squares in 6 ways, for example, as 2845969 + 317409856 = 1687^2 + 17816^2 .

It is not a de Polignac number, because 320255825 - 2² = 320255821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320255791 and 320255800.

It is not an unprimeable number, because it can be changed into a prime (320255821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19625 + ... + 32025.

It is an arithmetic number, because the mean of its divisors is an integer number (33127809).

Almost surely, 2^320255825 is an apocalyptic number.

It is an amenable number.

320255825 is a deficient number, since it is larger than the sum of its proper divisors (77277883).

320255825 is a wasteful number, since it uses less digits than its factorization.

320255825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444 (or 13439 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 320255825 is about 17895.6929175710. The cubic root of 320255825 is about 684.1726028680.

The spelling of 320255825 in words is "three hundred twenty million, two hundred fifty-five thousand, eight hundred twenty-five".