231425256 has 16 divisors (see below), whose sum is σ = 578563200. Its totient is φ = 77141744.

The previous prime is 231425251. The next prime is 231425309. The reversal of 231425256 is 652524132.

231425256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231425256² = 107115298229331072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231425251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4821336 + ... + 4821383.

It is an arithmetic number, because the mean of its divisors is an integer number (36160200).

Almost surely, 2^231425256 is an apocalyptic number.

It is an amenable number.

231425256 is an abundant number, since it is smaller than the sum of its proper divisors (347137944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231425256 is a wasteful number, since it uses less digits than its factorization.

231425256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642728 (or 9642724 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 231425256 is about 15212.6676161678. The cubic root of 231425256 is about 613.9555330011.

Adding to 231425256 its reverse (652524132), we get a palindrome (883949388).

The spelling of 231425256 in words is "two hundred thirty-one million, four hundred twenty-five thousand, two hundred fifty-six".