255002777797 has 2 divisors, whose sum is σ = 255002777798. Its totient is φ = 255002777796.

The previous prime is 255002777791. The next prime is 255002777807. The reversal of 255002777797 is 797777200552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211539284356 + 43463493441 = 459934^2 + 208479^2 .

It is a cyclic number.

It is not a de Polignac number, because 255002777797 - 2¹⁹ = 255002253509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255002777791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127501388898 + 127501388899.

It is an arithmetic number, because the mean of its divisors is an integer number (127501388899).

Almost surely, 2^255002777797 is an apocalyptic number.

It is an amenable number.

255002777797 is a deficient number, since it is larger than the sum of its proper divisors (1).

255002777797 is an equidigital number, since it uses as much as digits as its factorization.

255002777797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15126300, while the sum is 58.

The spelling of 255002777797 in words is "two hundred fifty-five billion, two million, seven hundred seventy-seven thousand, seven hundred ninety-seven".