224440225 has 12 divisors (see below), whose sum is σ = 279298096. Its totient is φ = 178912080.

The previous prime is 224440201. The next prime is 224440231. The reversal of 224440225 is 522044422.

224440225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-224440225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224440225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8787 + ... + 22936.

Almost surely, 2^224440225 is an apocalyptic number.

224440225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

224440225 is a deficient number, since it is larger than the sum of its proper divisors (54857871).

224440225 is a wasteful number, since it uses less digits than its factorization.

224440225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32016 (or 32011 counting only the distinct ones).

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

The square root of 224440225 is about 14981.3292133909. The cubic root of 224440225 is about 607.7153859267.

Adding to 224440225 its reverse (522044422), we get a palindrome (746484647).

The spelling of 224440225 in words is "two hundred twenty-four million, four hundred forty thousand, two hundred twenty-five".