255255785 has 32 divisors (see below), whose sum is σ = 334886400. Its totient is φ = 186105600.

The previous prime is 255255769. The next prime is 255255851. The reversal of 255255785 is 587552552.

It is not a de Polignac number, because 255255785 - 2⁴ = 255255769 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 31 ways as a sum of consecutive naturals, for example, 354656 + ... + 355374.

It is an arithmetic number, because the mean of its divisors is an integer number (10465200).

Almost surely, 2^255255785 is an apocalyptic number.

It is an amenable number.

255255785 is a deficient number, since it is larger than the sum of its proper divisors (79630615).

255255785 is a wasteful number, since it uses less digits than its factorization.

255255785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its digits is 700000, while the sum is 44.

The square root of 255255785 is about 15976.7263542942. The cubic root of 255255785 is about 634.3445279190.

The spelling of 255255785 in words is "two hundred fifty-five million, two hundred fifty-five thousand, seven hundred eighty-five".