2198817559 has 4 divisors (see below), whose sum is σ = 2199444160. Its totient is φ = 2198190960.

The previous prime is 2198817547. The next prime is 2198817581. The reversal of 2198817559 is 9557188912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2198817559 - 2⁵ = 2198817527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198817539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308007 + ... + 315064.

It is an arithmetic number, because the mean of its divisors is an integer number (549861040).

Almost surely, 2^2198817559 is an apocalyptic number.

2198817559 is a deficient number, since it is larger than the sum of its proper divisors (626601).

2198817559 is an equidigital number, since it uses as much as digits as its factorization.

2198817559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626600.

The product of its digits is 1814400, while the sum is 55.

The square root of 2198817559 is about 46891.5510406726. The cubic root of 2198817559 is about 1300.3583940855.

The spelling of 2198817559 in words is "two billion, one hundred ninety-eight million, eight hundred seventeen thousand, five hundred fifty-nine".