198502525 has 24 divisors (see below), whose sum is σ = 271560744. Its totient is φ = 143001600.

The previous prime is 198502433. The next prime is 198502531. The reversal of 198502525 is 525205891.

It can be written as a sum of positive squares in 12 ways, for example, as 92371321 + 106131204 = 9611^2 + 10302^2 .

It is not a de Polignac number, because 198502525 - 2¹⁵ = 198469757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5877 + ... + 20773.

It is an arithmetic number, because the mean of its divisors is an integer number (11315031).

Almost surely, 2^198502525 is an apocalyptic number.

It is an amenable number.

198502525 is a deficient number, since it is larger than the sum of its proper divisors (73058219).

198502525 is a wasteful number, since it uses less digits than its factorization.

198502525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14961 (or 14956 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 198502525 is about 14089.0924122173. The cubic root of 198502525 is about 583.3403418659.

The spelling of 198502525 in words is "one hundred ninety-eight million, five hundred two thousand, five hundred twenty-five".