231225253 has 4 divisors (see below), whose sum is σ = 264257440. Its totient is φ = 198193068.

The previous prime is 231225229. The next prime is 231225257. The reversal of 231225253 is 352522132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231225253 - 2⁵ = 231225221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231225257) 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, 16516083 + ... + 16516096.

It is an arithmetic number, because the mean of its divisors is an integer number (66064360).

Almost surely, 2^231225253 is an apocalyptic number.

It is an amenable number.

231225253 is a deficient number, since it is larger than the sum of its proper divisors (33032187).

231225253 is an equidigital number, since it uses as much as digits as its factorization.

231225253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33032186.

The product of its digits is 3600, while the sum is 25.

The square root of 231225253 is about 15206.0926276279. The cubic root of 231225253 is about 613.7786172212.

Adding to 231225253 its reverse (352522132), we get a palindrome (583747385).

The spelling of 231225253 in words is "two hundred thirty-one million, two hundred twenty-five thousand, two hundred fifty-three".