320231025 has 27 divisors (see below), whose sum is σ = 574050529. Its totient is φ = 170646720.

The previous prime is 320231011. The next prime is 320231027. The reversal of 320231025 is 520132023.

The square root of 320231025 is 17895.

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 5239521 + 314991504 = 2289^2 + 17748^2 .

It is not a de Polignac number, because 320231025 - 2¹⁵ = 320198257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320230989 and 320231007.

It is not an unprimeable number, because it can be changed into a prime (320231027) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 267829 + ... + 269021.

Almost surely, 2^320231025 is an apocalyptic number.

320231025 is the 17895-th square number.

320231025 is the 8948-th centered octagonal number.

It is an amenable number.

320231025 is a deficient number, since it is larger than the sum of its proper divisors (253819504).

320231025 is an equidigital number, since it uses as much as digits as its factorization.

320231025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 1201 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The cubic root of 320231025 is about 684.1549420718.

Adding to 320231025 its reverse (520132023), we get a palindrome (840363048).

The spelling of 320231025 in words is "three hundred twenty million, two hundred thirty-one thousand, twenty-five".