225641453 has 4 divisors (see below), whose sum is σ = 226075068. Its totient is φ = 225207840.

The previous prime is 225641443. The next prime is 225641519. The reversal of 225641453 is 354146522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161849284 + 63792169 = 12722^2 + 7987^2 .

It is a cyclic number.

It is not a de Polignac number, because 225641453 - 2⁸ = 225641197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225641443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216026 + ... + 217067.

It is an arithmetic number, because the mean of its divisors is an integer number (56518767).

Almost surely, 2^225641453 is an apocalyptic number.

It is an amenable number.

225641453 is a deficient number, since it is larger than the sum of its proper divisors (433615).

225641453 is an equidigital number, since it uses as much as digits as its factorization.

225641453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433614.

The product of its digits is 28800, while the sum is 32.

The square root of 225641453 is about 15021.3665490194. The cubic root of 225641453 is about 608.7976432655.

Adding to 225641453 its reverse (354146522), we get a palindrome (579787975).

The spelling of 225641453 in words is "two hundred twenty-five million, six hundred forty-one thousand, four hundred fifty-three".