550172198 has 8 divisors (see below), whose sum is σ = 826377240. Its totient is φ = 274713120.

The previous prime is 550172197. The next prime is 550172201. The reversal of 550172198 is 891271055.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550172191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184643 + ... + 187598.

It is an arithmetic number, because the mean of its divisors is an integer number (103297155).

Almost surely, 2^550172198 is an apocalyptic number.

550172198 is a deficient number, since it is larger than the sum of its proper divisors (276205042).

550172198 is a wasteful number, since it uses less digits than its factorization.

550172198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372982.

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 550172198 is about 23455.7497855004. The cubic root of 550172198 is about 819.4067680326.

The spelling of 550172198 in words is "five hundred fifty million, one hundred seventy-two thousand, one hundred ninety-eight".