255436768235063 has 2 divisors, whose sum is σ = 255436768235064. Its totient is φ = 255436768235062.

The previous prime is 255436768235053. The next prime is 255436768235081. The reversal of 255436768235063 is 360532867634552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255436768235063 - 2³⁸ = 255161890328119 is a prime.

It is a super-2 number, since 2×255436768235063² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255436768235003) 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, 127718384117531 + 127718384117532.

It is an arithmetic number, because the mean of its divisors is an integer number (127718384117532).

Almost surely, 2^{255436768235063} is an apocalyptic number.

255436768235063 is a deficient number, since it is larger than the sum of its proper divisors (1).

255436768235063 is an equidigital number, since it uses as much as digits as its factorization.

255436768235063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184000, while the sum is 65.

The spelling of 255436768235063 in words is "two hundred fifty-five trillion, four hundred thirty-six billion, seven hundred sixty-eight million, two hundred thirty-five thousand, sixty-three".