2025021231 has 12 divisors (see below), whose sum is σ = 2993055208. Its totient is φ = 1318618224.

The previous prime is 2025021217. The next prime is 2025021239. The reversal of 2025021231 is 1321205202.

It is not a de Polignac number, because 2025021231 - 2²³ = 2016632623 is a prime.

It is a super-2 number, since 2×2025021231² = 8201421972001510722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025021239) 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, 2615920 + ... + 2616693.

Almost surely, 2^2025021231 is an apocalyptic number.

2025021231 is a deficient number, since it is larger than the sum of its proper divisors (968033977).

2025021231 is a wasteful number, since it uses less digits than its factorization.

2025021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5232662 (or 5232659 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2025021231 is about 45000.2358993817. The cubic root of 2025021231 is about 1265.1534193986.

Adding to 2025021231 its reverse (1321205202), we get a palindrome (3346226433).

The spelling of 2025021231 in words is "two billion, twenty-five million, twenty-one thousand, two hundred thirty-one".