255517773017 has 16 divisors (see below), whose sum is σ = 298999518720. Its totient is φ = 216240710400.

The previous prime is 255517772987. The next prime is 255517773073. The reversal of 255517773017 is 710377715552.

It is not a de Polignac number, because 255517773017 - 2⁶ = 255517772953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255517773517) 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 in 15 ways as a sum of consecutive naturals, for example, 16677584 + ... + 16692897.

It is an arithmetic number, because the mean of its divisors is an integer number (18687469920).

Almost surely, 2^255517773017 is an apocalyptic number.

It is an amenable number.

255517773017 is a deficient number, since it is larger than the sum of its proper divisors (43481745703).

255517773017 is a wasteful number, since it uses less digits than its factorization.

255517773017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33370544.

The product of its (nonzero) digits is 1800750, while the sum is 50.

The spelling of 255517773017 in words is "two hundred fifty-five billion, five hundred seventeen million, seven hundred seventy-three thousand, seventeen".