205272492497 has 2 divisors, whose sum is σ = 205272492498. Its totient is φ = 205272492496.

The previous prime is 205272492473. The next prime is 205272492547. The reversal of 205272492497 is 794294272502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196001883841 + 9270608656 = 442721^2 + 96284^2 .

It is a cyclic number.

It is not a de Polignac number, because 205272492497 - 2¹⁴ = 205272476113 is a prime.

It is not a weakly prime, because it can be changed into another prime (205272492097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102636246248 + 102636246249.

It is an arithmetic number, because the mean of its divisors is an integer number (102636246249).

Almost surely, 2^205272492497 is an apocalyptic number.

It is an amenable number.

205272492497 is a deficient number, since it is larger than the sum of its proper divisors (1).

205272492497 is an equidigital number, since it uses as much as digits as its factorization.

205272492497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 205272492497 in words is "two hundred five billion, two hundred seventy-two million, four hundred ninety-two thousand, four hundred ninety-seven".