255796905 has 96 divisors (see below), whose sum is σ = 540086400. Its totient is φ = 102187008.

The previous prime is 255796859. The next prime is 255796913. The reversal of 255796905 is 509697552.

It is a happy number.

It is not a de Polignac number, because 255796905 - 2⁸ = 255796649 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 95 ways as a sum of consecutive naturals, for example, 180841 + ... + 182249.

It is an arithmetic number, because the mean of its divisors is an integer number (5625900).

Almost surely, 2^255796905 is an apocalyptic number.

It is an amenable number.

255796905 is an abundant number, since it is smaller than the sum of its proper divisors (284289495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255796905 is a wasteful number, since it uses less digits than its factorization.

255796905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 48.

The square root of 255796905 is about 15993.6520219742. The cubic root of 255796905 is about 634.7924632300.

The spelling of 255796905 in words is "two hundred fifty-five million, seven hundred ninety-six thousand, nine hundred five".