255502502777 has 2 divisors, whose sum is σ = 255502502778. Its totient is φ = 255502502776.

The previous prime is 255502502753. The next prime is 255502502791. The reversal of 255502502777 is 777205205552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159863229241 + 95639273536 = 399829^2 + 309256^2 .

It is a cyclic number.

It is not a de Polignac number, because 255502502777 - 2⁶ = 255502502713 is a prime.

It is not a weakly prime, because it can be changed into another prime (255502502747) 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, 127751251388 + 127751251389.

It is an arithmetic number, because the mean of its divisors is an integer number (127751251389).

Almost surely, 2^255502502777 is an apocalyptic number.

It is an amenable number.

255502502777 is a deficient number, since it is larger than the sum of its proper divisors (1).

255502502777 is an equidigital number, since it uses as much as digits as its factorization.

255502502777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1715000, while the sum is 47.

The spelling of 255502502777 in words is "two hundred fifty-five billion, five hundred two million, five hundred two thousand, seven hundred seventy-seven".