225231573 has 16 divisors (see below), whose sum is σ = 351582336. Its totient is φ = 125564160.

The previous prime is 225231563. The next prime is 225231577. The reversal of 225231573 is 375132522.

It is a happy number.

It is not a de Polignac number, because 225231573 - 2⁴ = 225231557 is a prime.

It is a super-2 number, since 2×225231573² = 101458522952108658, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225231573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225231577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129936 + ... + 131657.

It is an arithmetic number, because the mean of its divisors is an integer number (21973896).

Almost surely, 2^225231573 is an apocalyptic number.

It is an amenable number.

225231573 is a deficient number, since it is larger than the sum of its proper divisors (126350763).

225231573 is a wasteful number, since it uses less digits than its factorization.

225231573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261644.

The product of its digits is 12600, while the sum is 30.

The square root of 225231573 is about 15007.7171148713. The cubic root of 225231573 is about 608.4287907917.

The spelling of 225231573 in words is "two hundred twenty-five million, two hundred thirty-one thousand, five hundred seventy-three".