225444200 has 24 divisors (see below), whose sum is σ = 524158230. Its totient is φ = 90177600.

The previous prime is 225444179. The next prime is 225444203. The reversal of 225444200 is 2444522.

It can be written as a sum of positive squares in 3 ways, for example, as 126202756 + 99241444 = 11234^2 + 9962^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (225444203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563411 + ... + 563810.

Almost surely, 2^225444200 is an apocalyptic number.

225444200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225444200 is an abundant number, since it is smaller than the sum of its proper divisors (298714030).

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

225444200 is a wasteful number, since it uses less digits than its factorization.

225444200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127237 (or 1127228 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 225444200 is about 15014.7993659589. The cubic root of 225444200 is about 608.6201903938.

Adding to 225444200 its reverse (2444522), we get a palindrome (227888722).

The spelling of 225444200 in words is "two hundred twenty-five million, four hundred forty-four thousand, two hundred".