225032557649 has 2 divisors, whose sum is σ = 225032557650. Its totient is φ = 225032557648.

The previous prime is 225032557627. The next prime is 225032557661. The reversal of 225032557649 is 946755230522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218065650625 + 6966907024 = 466975^2 + 83468^2 .

It is a cyclic number.

It is not a de Polignac number, because 225032557649 - 2¹² = 225032553553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225032557597 and 225032557606.

It is not a weakly prime, because it can be changed into another prime (225032557249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112516278824 + 112516278825.

It is an arithmetic number, because the mean of its divisors is an integer number (112516278825).

Almost surely, 2^225032557649 is an apocalyptic number.

It is an amenable number.

225032557649 is a deficient number, since it is larger than the sum of its proper divisors (1).

225032557649 is an equidigital number, since it uses as much as digits as its factorization.

225032557649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 50.

The spelling of 225032557649 in words is "two hundred twenty-five billion, thirty-two million, five hundred fifty-seven thousand, six hundred forty-nine".