255211287898 has 16 divisors (see below), whose sum is σ = 437551447680. Its totient is φ = 109364670576.

The previous prime is 255211287889. The next prime is 255211287913. The reversal of 255211287898 is 898782112552.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828861 + ... + 1094272.

It is an arithmetic number, because the mean of its divisors is an integer number (27346965480).

Almost surely, 2^255211287898 is an apocalyptic number.

255211287898 is a deficient number, since it is larger than the sum of its proper divisors (182340159782).

255211287898 is a wasteful number, since it uses less digits than its factorization.

255211287898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932621.

The product of its digits is 6451200, while the sum is 58.

The spelling of 255211287898 in words is "two hundred fifty-five billion, two hundred eleven million, two hundred eighty-seven thousand, eight hundred ninety-eight".