205226506453 has 2 divisors, whose sum is σ = 205226506454. Its totient is φ = 205226506452.

The previous prime is 205226506391. The next prime is 205226506477. The reversal of 205226506453 is 354605622502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173970741604 + 31255764849 = 417098^2 + 176793^2 .

It is a cyclic number.

It is not a de Polignac number, because 205226506453 - 2³³ = 196636571861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205226506483) 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, 102613253226 + 102613253227.

It is an arithmetic number, because the mean of its divisors is an integer number (102613253227).

Almost surely, 2^205226506453 is an apocalyptic number.

It is an amenable number.

205226506453 is a deficient number, since it is larger than the sum of its proper divisors (1).

205226506453 is an equidigital number, since it uses as much as digits as its factorization.

205226506453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 205226506453 in words is "two hundred five billion, two hundred twenty-six million, five hundred six thousand, four hundred fifty-three".