225344453 has 2 divisors, whose sum is σ = 225344454. Its totient is φ = 225344452.

The previous prime is 225344443. The next prime is 225344479. The reversal of 225344453 is 354443522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205692964 + 19651489 = 14342^2 + 4433^2 .

It is a cyclic number.

It is not a de Polignac number, because 225344453 - 2¹⁸ = 225082309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225344443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112672226 + 112672227.

It is an arithmetic number, because the mean of its divisors is an integer number (112672227).

Almost surely, 2^225344453 is an apocalyptic number.

It is an amenable number.

225344453 is a deficient number, since it is larger than the sum of its proper divisors (1).

225344453 is an equidigital number, since it uses as much as digits as its factorization.

225344453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 32.

The square root of 225344453 is about 15011.4773756616. The cubic root of 225344453 is about 608.5304165256.

Adding to 225344453 its reverse (354443522), we get a palindrome (579787975).

The spelling of 225344453 in words is "two hundred twenty-five million, three hundred forty-four thousand, four hundred fifty-three".