226252543539521 has 2 divisors, whose sum is σ = 226252543539522. Its totient is φ = 226252543539520.

The previous prime is 226252543539457. The next prime is 226252543539541. The reversal of 226252543539521 is 125935345252622.

226252543539521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207260248799296 + 18992294740225 = 14396536^2 + 4358015^2 .

It is a cyclic number.

It is not a de Polignac number, because 226252543539521 - 2⁶ = 226252543539457 is a prime.

It is not a weakly prime, because it can be changed into another prime (226252543539541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113126271769760 + 113126271769761.

It is an arithmetic number, because the mean of its divisors is an integer number (113126271769761).

Almost surely, 2^{226252543539521} is an apocalyptic number.

It is an amenable number.

226252543539521 is a deficient number, since it is larger than the sum of its proper divisors (1).

226252543539521 is an equidigital number, since it uses as much as digits as its factorization.

226252543539521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880000, while the sum is 56.

The spelling of 226252543539521 in words is "two hundred twenty-six trillion, two hundred fifty-two billion, five hundred forty-three million, five hundred thirty-nine thousand, five hundred twenty-one".