255573305889 has 16 divisors (see below), whose sum is σ = 371974394880. Its totient is φ = 154796494160.

The previous prime is 255573305887. The next prime is 255573305899. The reversal of 255573305889 is 988503375552.

It is not a de Polignac number, because 255573305889 - 2¹ = 255573305887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255573305887) by changing a digit.

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, 2356629 + ... + 2462690.

It is an arithmetic number, because the mean of its divisors is an integer number (23248399680).

Almost surely, 2^255573305889 is an apocalyptic number.

It is an amenable number.

255573305889 is a deficient number, since it is larger than the sum of its proper divisors (116401088991).

255573305889 is a wasteful number, since it uses less digits than its factorization.

255573305889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820940.

The product of its (nonzero) digits is 45360000, while the sum is 60.

The spelling of 255573305889 in words is "two hundred fifty-five billion, five hundred seventy-three million, three hundred five thousand, eight hundred eighty-nine".