225516363313 has 2 divisors, whose sum is σ = 225516363314. Its totient is φ = 225516363312.

The previous prime is 225516363299. The next prime is 225516363341. The reversal of 225516363313 is 313363615522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217764089104 + 7752274209 = 466652^2 + 88047^2 .

It is a cyclic number.

It is not a de Polignac number, because 225516363313 - 2²¹ = 225514266161 is a prime.

It is not a weakly prime, because it can be changed into another prime (225516363383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112758181656 + 112758181657.

It is an arithmetic number, because the mean of its divisors is an integer number (112758181657).

Almost surely, 2^225516363313 is an apocalyptic number.

It is an amenable number.

225516363313 is a deficient number, since it is larger than the sum of its proper divisors (1).

225516363313 is an equidigital number, since it uses as much as digits as its factorization.

225516363313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 40.

Adding to 225516363313 its reverse (313363615522), we get a palindrome (538879978835).

The spelling of 225516363313 in words is "two hundred twenty-five billion, five hundred sixteen million, three hundred sixty-three thousand, three hundred thirteen".