331023025 has 6 divisors (see below), whose sum is σ = 410468582. Its totient is φ = 264818400.

The previous prime is 331023013. The next prime is 331023029. The reversal of 331023025 is 520320133.

It can be written as a sum of positive squares in 3 ways, for example, as 70006689 + 261016336 = 8367^2 + 16156^2 .

It is not a de Polignac number, because 331023025 - 2⁷ = 331022897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331022993 and 331023011.

It is not an unprimeable number, because it can be changed into a prime (331023029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6620436 + ... + 6620485.

Almost surely, 2^331023025 is an apocalyptic number.

It is an amenable number.

331023025 is a deficient number, since it is larger than the sum of its proper divisors (79445557).

331023025 is a wasteful number, since it uses less digits than its factorization.

331023025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13240931 (or 13240926 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 331023025 is about 18194.0381718848. The cubic root of 331023025 is about 691.7556808713.

Adding to 331023025 its reverse (520320133), we get a palindrome (851343158).

It can be divided in two parts, 3310 and 23025, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 331023025 in words is "three hundred thirty-one million, twenty-three thousand, twenty-five".