198382553 has 8 divisors (see below), whose sum is σ = 212248320. Its totient is φ = 184859280.

The previous prime is 198382549. The next prime is 198382589. The reversal of 198382553 is 355283891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198382553 - 2² = 198382549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198382523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84425 + ... + 86742.

It is an arithmetic number, because the mean of its divisors is an integer number (26531040).

Almost surely, 2^198382553 is an apocalyptic number.

It is an amenable number.

198382553 is a deficient number, since it is larger than the sum of its proper divisors (13865767).

198382553 is a wasteful number, since it uses less digits than its factorization.

198382553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171247.

The product of its digits is 259200, while the sum is 44.

The square root of 198382553 is about 14084.8341488283. The cubic root of 198382553 is about 583.2227974141. Note that the first 3 decimals are identical.

The spelling of 198382553 in words is "one hundred ninety-eight million, three hundred eighty-two thousand, five hundred fifty-three".