225715213499453 has 2 divisors, whose sum is σ = 225715213499454. Its totient is φ = 225715213499452.

The previous prime is 225715213499449. The next prime is 225715213499471. The reversal of 225715213499453 is 354994312517522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167515372929529 + 58199840569924 = 12942773^2 + 7628882^2 .

It is a cyclic number.

It is not a de Polignac number, because 225715213499453 - 2² = 225715213499449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225715213499443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112857606749726 + 112857606749727.

It is an arithmetic number, because the mean of its divisors is an integer number (112857606749727).

Almost surely, 2^{225715213499453} is an apocalyptic number.

It is an amenable number.

225715213499453 is a deficient number, since it is larger than the sum of its proper divisors (1).

225715213499453 is an equidigital number, since it uses as much as digits as its factorization.

225715213499453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648000, while the sum is 62.

The spelling of 225715213499453 in words is "two hundred twenty-five trillion, seven hundred fifteen billion, two hundred thirteen million, four hundred ninety-nine thousand, four hundred fifty-three".