224512500 has 72 divisors (see below), whose sum is σ = 654895584. Its totient is φ = 59860000.

The previous prime is 224512487. The next prime is 224512507. The reversal of 224512500 is 5215422.

It is a happy number.

224512500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224512507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34507 + ... + 40493.

It is an arithmetic number, because the mean of its divisors is an integer number (9095772).

Almost surely, 2^224512500 is an apocalyptic number.

224512500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224512500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327447792).

224512500 is an abundant number, since it is smaller than the sum of its proper divisors (430383084).

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

224512500 is an equidigital number, since it uses as much as digits as its factorization.

224512500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6019 (or 5997 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 224512500 is about 14983.7411883681. The cubic root of 224512500 is about 607.7806117801.

Adding to 224512500 its reverse (5215422), we get a palindrome (229727922).

The spelling of 224512500 in words is "two hundred twenty-four million, five hundred twelve thousand, five hundred".