225244 has 6 divisors (see below), whose sum is σ = 394184. Its totient is φ = 112620.

The previous prime is 225241. The next prime is 225257. The reversal of 225244 is 442522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28152 + ... + 28159.

2²²⁵²⁴⁴ is an apocalyptic number.

It is an amenable number.

225244 is a deficient number, since it is larger than the sum of its proper divisors (168940).

225244 is a wasteful number, since it uses less digits than its factorization.

225244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56315 (or 56313 counting only the distinct ones).

The product of its digits is 640, while the sum is 19.

The square root of 225244 is about 474.5987779167. The cubic root of 225244 is about 60.8439980469.

Adding to 225244 its reverse (442522), we get a palindrome (667766).

The spelling of 225244 in words is "two hundred twenty-five thousand, two hundred forty-four".