225223431 has 8 divisors (see below), whose sum is σ = 304527744. Its totient is φ = 148034040.

The previous prime is 225223409. The next prime is 225223441. The reversal of 225223431 is 134322522.

225223431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225223431 - 2⁵ = 225223399 is a prime.

It is a super-2 number, since 2×225223431² = 101451187742823522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225223441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528481 + ... + 528906.

It is an arithmetic number, because the mean of its divisors is an integer number (38065968).

Almost surely, 2^225223431 is an apocalyptic number.

225223431 is a deficient number, since it is larger than the sum of its proper divisors (79304313).

225223431 is a wasteful number, since it uses less digits than its factorization.

225223431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057461.

The product of its digits is 2880, while the sum is 24.

The square root of 225223431 is about 15007.4458519763. The cubic root of 225223431 is about 608.4214592457.

Adding to 225223431 its reverse (134322522), we get a palindrome (359545953).

Subtracting from 225223431 its reverse (134322522), we obtain a palindrome (90900909).

The spelling of 225223431 in words is "two hundred twenty-five million, two hundred twenty-three thousand, four hundred thirty-one".