225544423 has 16 divisors (see below), whose sum is σ = 260094240. Its totient is φ = 193729536.

The previous prime is 225544387. The next prime is 225544427. The reversal of 225544423 is 324445522.

It is not a de Polignac number, because 225544423 - 2¹⁷ = 225413351 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 (225544427) 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, 13936 + ... + 25402.

It is an arithmetic number, because the mean of its divisors is an integer number (16255890).

Almost surely, 2^225544423 is an apocalyptic number.

225544423 is a deficient number, since it is larger than the sum of its proper divisors (34549817).

225544423 is a wasteful number, since it uses less digits than its factorization.

225544423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11586.

The product of its digits is 38400, while the sum is 31.

The square root of 225544423 is about 15018.1364689498. The cubic root of 225544423 is about 608.7103660035.

Adding to 225544423 its reverse (324445522), we get a palindrome (549989945).

The spelling of 225544423 in words is "two hundred twenty-five million, five hundred forty-four thousand, four hundred twenty-three".