225244000 has 48 divisors (see below), whose sum is σ = 553434336. Its totient is φ = 90096000.

The previous prime is 225243979. The next prime is 225244001. The reversal of 225244000 is 442522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225244001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24156 + ... + 32155.

It is an arithmetic number, because the mean of its divisors is an integer number (11529882).

Almost surely, 2^225244000 is an apocalyptic number.

225244000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225244000 is an abundant number, since it is smaller than the sum of its proper divisors (328190336).

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

225244000 is an equidigital number, since it uses as much as digits as its factorization.

225244000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56336 (or 56318 counting only the distinct ones).

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

The square root of 225244000 is about 15008.1311294911. The cubic root of 225244000 is about 608.4399804685.

Adding to 225244000 its reverse (442522), we get a palindrome (225686522).

The spelling of 225244000 in words is "two hundred twenty-five million, two hundred forty-four thousand".