255198889 has 8 divisors (see below), whose sum is σ = 278514432. Its totient is φ = 231902640.

The previous prime is 255198887. The next prime is 255198901. The reversal of 255198889 is 988891552.

It is a happy number.

255198889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255198889 - 2¹ = 255198887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255198887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49267 + ... + 54199.

It is an arithmetic number, because the mean of its divisors is an integer number (34814304).

Almost surely, 2^255198889 is an apocalyptic number.

It is an amenable number.

255198889 is a deficient number, since it is larger than the sum of its proper divisors (23315543).

255198889 is a wasteful number, since it uses less digits than its factorization.

255198889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9647.

The product of its digits is 2073600, while the sum is 55.

The square root of 255198889 is about 15974.9456650093. The cubic root of 255198889 is about 634.2973930445.

The spelling of 255198889 in words is "two hundred fifty-five million, one hundred ninety-eight thousand, eight hundred eighty-nine".