198032550 has 48 divisors (see below), whose sum is σ = 492416400. Its totient is φ = 52669440.

The previous prime is 198032543. The next prime is 198032579. The reversal of 198032550 is 55230891.

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, 63426 + ... + 66474.

It is an arithmetic number, because the mean of its divisors is an integer number (10258675).

Almost surely, 2^198032550 is an apocalyptic number.

198032550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198032550 is an abundant number, since it is smaller than the sum of its proper divisors (294383850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198032550 is a wasteful number, since it uses less digits than its factorization.

198032550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 198032550 is about 14072.4038458253. The cubic root of 198032550 is about 582.8796054499.

The spelling of 198032550 in words is "one hundred ninety-eight million, thirty-two thousand, five hundred fifty".