255396420311 has 2 divisors, whose sum is σ = 255396420312. Its totient is φ = 255396420310.

The previous prime is 255396420281. The next prime is 255396420317. The reversal of 255396420311 is 113024693552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255396420311 - 2⁶ = 255396420247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255396420317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127698210155 + 127698210156.

It is an arithmetic number, because the mean of its divisors is an integer number (127698210156).

Almost surely, 2^255396420311 is an apocalyptic number.

255396420311 is a deficient number, since it is larger than the sum of its proper divisors (1).

255396420311 is an equidigital number, since it uses as much as digits as its factorization.

255396420311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 255396420311 in words is "two hundred fifty-five billion, three hundred ninety-six million, four hundred twenty thousand, three hundred eleven".