855259198 has 32 divisors (see below), whose sum is σ = 1381847040. Its totient is φ = 395759520.

The previous prime is 855259193. The next prime is 855259199. The reversal of 855259198 is 891952558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855259193) 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, 545011 + ... + 546577.

It is an arithmetic number, because the mean of its divisors is an integer number (43182720).

Almost surely, 2^855259198 is an apocalyptic number.

855259198 is a deficient number, since it is larger than the sum of its proper divisors (526587842).

855259198 is a wasteful number, since it uses less digits than its factorization.

855259198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912.

The product of its digits is 1296000, while the sum is 52.

The square root of 855259198 is about 29244.8148908486. The cubic root of 855259198 is about 949.2178966479.

The spelling of 855259198 in words is "eight hundred fifty-five million, two hundred fifty-nine thousand, one hundred ninety-eight".