320589025 has 9 divisors (see below), whose sum is σ = 397641433. Its totient is φ = 256399600.

The previous prime is 320589007. The next prime is 320589041. The reversal of 320589025 is 520985023.

The square root of 320589025 is 17905.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 29408929 + 291180096 = 5423^2 + 17064^2 .

It is not a de Polignac number, because 320589025 - 2¹⁷ = 320457953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 87735 + ... + 91315.

Almost surely, 2^320589025 is an apocalyptic number.

320589025 is the 17905-th square number.

320589025 is the 8953-rd centered octagonal number.

It is an amenable number.

320589025 is a deficient number, since it is larger than the sum of its proper divisors (77052408).

320589025 is an frugal number, since it uses more digits than its factorization.

320589025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7172 (or 3586 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The cubic root of 320589025 is about 684.4097958442.

The spelling of 320589025 in words is "three hundred twenty million, five hundred eighty-nine thousand, twenty-five".