198525 has 12 divisors (see below), whose sum is σ = 328352. Its totient is φ = 105840.

The previous prime is 198503. The next prime is 198529. The reversal of 198525 is 525891.

It is not a de Polignac number, because 198525 - 2⁶ = 198461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 198492 and 198501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1249 + ... + 1398.

2¹⁹⁸⁵²⁵ is an apocalyptic number.

198525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198525 is a deficient number, since it is larger than the sum of its proper divisors (129827).

198525 is a wasteful number, since it uses less digits than its factorization.

198525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660 (or 2655 counting only the distinct ones).

The product of its digits is 3600, while the sum is 30.

The square root of 198525 is about 445.5614435743. The cubic root of 198525 is about 58.3362356833.

The spelling of 198525 in words is "one hundred ninety-eight thousand, five hundred twenty-five".