255597859 has 12 divisors (see below), whose sum is σ = 282539880. Its totient is φ = 231044000.

The previous prime is 255597829. The next prime is 255597863. The reversal of 255597859 is 958795552.

It is a happy number.

It is not a de Polignac number, because 255597859 - 2⁹ = 255597347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255597809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15759 + ... + 27559.

It is an arithmetic number, because the mean of its divisors is an integer number (23544990).

Almost surely, 2^255597859 is an apocalyptic number.

255597859 is a deficient number, since it is larger than the sum of its proper divisors (26942021).

255597859 is a wasteful number, since it uses less digits than its factorization.

255597859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12002 (or 11991 counting only the distinct ones).

The product of its digits is 5670000, while the sum is 55.

The square root of 255597859 is about 15987.4281546470. The cubic root of 255597859 is about 634.6277678723.

The spelling of 255597859 in words is "two hundred fifty-five million, five hundred ninety-seven thousand, eight hundred fifty-nine".