550513209 has 8 divisors (see below), whose sum is σ = 749635200. Its totient is φ = 359200016.

The previous prime is 550513199. The next prime is 550513231. The reversal of 550513209 is 902315055.

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

It is a cyclic number.

It is not a de Polignac number, because 550513209 - 2⁷ = 550513081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550513289) 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 7 ways as a sum of consecutive naturals, for example, 1952034 + ... + 1952315.

It is an arithmetic number, because the mean of its divisors is an integer number (93704400).

Almost surely, 2^550513209 is an apocalyptic number.

It is an amenable number.

550513209 is a deficient number, since it is larger than the sum of its proper divisors (199121991).

550513209 is a wasteful number, since it uses less digits than its factorization.

550513209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904399.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 550513209 is about 23463.0179005174. The cubic root of 550513209 is about 819.5760295900.

The spelling of 550513209 in words is "five hundred fifty million, five hundred thirteen thousand, two hundred nine".