198716025 has 12 divisors (see below), whose sum is σ = 328543952. Its totient is φ = 105981840.

The previous prime is 198716017. The next prime is 198716059. The reversal of 198716025 is 520617891.

It is not a de Polignac number, because 198716025 - 2³ = 198716017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1324699 + ... + 1324848.

Almost surely, 2^198716025 is an apocalyptic number.

198716025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198716025 is a deficient number, since it is larger than the sum of its proper divisors (129827927).

198716025 is a wasteful number, since it uses less digits than its factorization.

198716025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649560 (or 2649555 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 198716025 is about 14096.6671592969. The cubic root of 198716025 is about 583.5494047628.

The spelling of 198716025 in words is "one hundred ninety-eight million, seven hundred sixteen thousand, twenty-five".