255748785 has 16 divisors (see below), whose sum is σ = 409461504. Its totient is φ = 136311552.

The previous prime is 255748769. The next prime is 255748819. The reversal of 255748785 is 587847552.

It is not a de Polignac number, because 255748785 - 2⁴ = 255748769 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 23544 + ... + 32646.

It is an arithmetic number, because the mean of its divisors is an integer number (25591344).

Almost surely, 2^255748785 is an apocalyptic number.

It is an amenable number.

255748785 is a deficient number, since it is larger than the sum of its proper divisors (153712719).

255748785 is a wasteful number, since it uses less digits than its factorization.

255748785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10984.

The product of its digits is 3136000, while the sum is 51.

The square root of 255748785 is about 15992.1476043713. The cubic root of 255748785 is about 634.7526554393.

The spelling of 255748785 in words is "two hundred fifty-five million, seven hundred forty-eight thousand, seven hundred eighty-five".