225222424 has 24 divisors (see below), whose sum is σ = 491238540. Its totient is φ = 96523728.

The previous prime is 225222407. The next prime is 225222451. The reversal of 225222424 is 424222522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286882 + ... + 287665.

Almost surely, 2^225222424 is an apocalyptic number.

It is an amenable number.

225222424 is an abundant number, since it is smaller than the sum of its proper divisors (266016116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225222424 is a wasteful number, since it uses less digits than its factorization.

225222424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574567 (or 574556 counting only the distinct ones).

The product of its digits is 5120, while the sum is 25.

The square root of 225222424 is about 15007.4123019260. The cubic root of 225222424 is about 608.4205524702.

Adding to 225222424 its reverse (424222522), we get a palindrome (649444946).

The spelling of 225222424 in words is "two hundred twenty-five million, two hundred twenty-two thousand, four hundred twenty-four".