198536225 has 24 divisors (see below), whose sum is σ = 264685440. Its totient is φ = 147251520.

The previous prime is 198536189. The next prime is 198536237. The reversal of 198536225 is 522635891.

198536225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198536225 - 2¹⁸ = 198274081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17879 + ... + 26771.

It is an arithmetic number, because the mean of its divisors is an integer number (11028560).

Almost surely, 2^198536225 is an apocalyptic number.

It is an amenable number.

198536225 is a deficient number, since it is larger than the sum of its proper divisors (66149215).

198536225 is a wasteful number, since it uses less digits than its factorization.

198536225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969 (or 8964 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 198536225 is about 14090.2883221033. The cubic root of 198536225 is about 583.3733514496.

The spelling of 198536225 in words is "one hundred ninety-eight million, five hundred thirty-six thousand, two hundred twenty-five".