205502198 has 16 divisors (see below), whose sum is σ = 336940560. Its totient is φ = 93225600.

The previous prime is 205502191. The next prime is 205502221. The reversal of 205502198 is 891205502.

205502198 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205502191) by changing a digit.

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, 2498 + ... + 20426.

It is an arithmetic number, because the mean of its divisors is an integer number (21058785).

Almost surely, 2^205502198 is an apocalyptic number.

205502198 is a deficient number, since it is larger than the sum of its proper divisors (131438362).

205502198 is a wasteful number, since it uses less digits than its factorization.

205502198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18463.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 205502198 is about 14335.3478506802. The cubic root of 205502198 is about 590.1179482663.

The spelling of 205502198 in words is "two hundred five million, five hundred two thousand, one hundred ninety-eight".