225336502268561 has 2 divisors, whose sum is σ = 225336502268562. Its totient is φ = 225336502268560.

The previous prime is 225336502268531. The next prime is 225336502268641. The reversal of 225336502268561 is 165862205633522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191297667481600 + 34038834786961 = 13831040^2 + 5834281^2 .

It is a cyclic number.

It is not a de Polignac number, because 225336502268561 - 2³⁴ = 225319322399377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225336502268497 and 225336502268506.

It is not a weakly prime, because it can be changed into another prime (225336502268531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112668251134280 + 112668251134281.

It is an arithmetic number, because the mean of its divisors is an integer number (112668251134281).

Almost surely, 2^{225336502268561} is an apocalyptic number.

It is an amenable number.

225336502268561 is a deficient number, since it is larger than the sum of its proper divisors (1).

225336502268561 is an equidigital number, since it uses as much as digits as its factorization.

225336502268561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104000, while the sum is 56.

The spelling of 225336502268561 in words is "two hundred twenty-five trillion, three hundred thirty-six billion, five hundred two million, two hundred sixty-eight thousand, five hundred sixty-one".