225234431 has 2 divisors, whose sum is σ = 225234432. Its totient is φ = 225234430.

The previous prime is 225234413. The next prime is 225234533. The reversal of 225234431 is 134432522.

Together with previous prime (225234413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225234431 - 2⁶ = 225234367 is a prime.

It is a super-2 number, since 2×225234431² = 101461097815787522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225234431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225237431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112617215 + 112617216.

It is an arithmetic number, because the mean of its divisors is an integer number (112617216).

Almost surely, 2^225234431 is an apocalyptic number.

225234431 is a deficient number, since it is larger than the sum of its proper divisors (1).

225234431 is an equidigital number, since it uses as much as digits as its factorization.

225234431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 26.

The square root of 225234431 is about 15007.8123322488. The cubic root of 225234431 is about 608.4313642648.

Adding to 225234431 its reverse (134432522), we get a palindrome (359666953).

The spelling of 225234431 in words is "two hundred twenty-five million, two hundred thirty-four thousand, four hundred thirty-one".