198875563 has 2 divisors, whose sum is σ = 198875564. Its totient is φ = 198875562.

The previous prime is 198875513. The next prime is 198875569. The reversal of 198875563 is 365578891.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198875563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198875563.

It is not a weakly prime, because it can be changed into another prime (198875569) 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 as a sum of consecutive naturals, namely, 99437781 + 99437782.

It is an arithmetic number, because the mean of its divisors is an integer number (99437782).

Almost surely, 2^198875563 is an apocalyptic number.

198875563 is a deficient number, since it is larger than the sum of its proper divisors (1).

198875563 is an equidigital number, since it uses as much as digits as its factorization.

198875563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 52.

The square root of 198875563 is about 14102.3247374325. The cubic root of 198875563 is about 583.7055293993.

The spelling of 198875563 in words is "one hundred ninety-eight million, eight hundred seventy-five thousand, five hundred sixty-three".