198589055 has 8 divisors (see below), whose sum is σ = 272350752. Its totient is φ = 136175328.

The previous prime is 198589033. The next prime is 198589067. The reversal of 198589055 is 550985891.

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 198589055 - 2¹² = 198584959 is a prime.

It is a super-2 number, since 2×198589055² = 78875225531586050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198588994 and 198589012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2836952 + ... + 2837021.

It is an arithmetic number, because the mean of its divisors is an integer number (34043844).

Almost surely, 2^198589055 is an apocalyptic number.

198589055 is a deficient number, since it is larger than the sum of its proper divisors (73761697).

198589055 is an equidigital number, since it uses as much as digits as its factorization.

198589055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673985.

The product of its (nonzero) digits is 648000, while the sum is 50.

The square root of 198589055 is about 14092.1628928990. The cubic root of 198589055 is about 583.4250915974.

The spelling of 198589055 in words is "one hundred ninety-eight million, five hundred eighty-nine thousand, fifty-five".