225122521453 has 2 divisors, whose sum is σ = 225122521454. Its totient is φ = 225122521452.

The previous prime is 225122521441. The next prime is 225122521483. The reversal of 225122521453 is 354125221522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133723325124 + 91399196329 = 365682^2 + 302323^2 .

It is a cyclic number.

It is not a de Polignac number, because 225122521453 - 2³³ = 216532586861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225122521483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112561260726 + 112561260727.

It is an arithmetic number, because the mean of its divisors is an integer number (112561260727).

Almost surely, 2^225122521453 is an apocalyptic number.

It is an amenable number.

225122521453 is a deficient number, since it is larger than the sum of its proper divisors (1).

225122521453 is an equidigital number, since it uses as much as digits as its factorization.

225122521453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 34.

Adding to 225122521453 its reverse (354125221522), we get a palindrome (579247742975).

The spelling of 225122521453 in words is "two hundred twenty-five billion, one hundred twenty-two million, five hundred twenty-one thousand, four hundred fifty-three".