255775585 has 24 divisors (see below), whose sum is σ = 335526840. Its totient is φ = 187080192.

The previous prime is 255775579. The next prime is 255775601. The reversal of 255775585 is 585577552.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 167547136 + 88228449 = 12944^2 + 9393^2 .

It is not a de Polignac number, because 255775585 - 2³ = 255775577 is a prime.

It is a super-2 number, since 2×255775585² = 130842299764184450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90717 + ... + 93493.

It is an arithmetic number, because the mean of its divisors is an integer number (13980285).

Almost surely, 2^255775585 is an apocalyptic number.

It is an amenable number.

255775585 is a deficient number, since it is larger than the sum of its proper divisors (79751255).

255775585 is a wasteful number, since it uses less digits than its factorization.

255775585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917 (or 2904 counting only the distinct ones).

The product of its digits is 2450000, while the sum is 49.

The square root of 255775585 is about 15992.9854936469. The cubic root of 255775585 is about 634.7748266453.

The spelling of 255775585 in words is "two hundred fifty-five million, seven hundred seventy-five thousand, five hundred eighty-five".