550008809 has 16 divisors (see below), whose sum is σ = 666126720. Its totient is φ = 444071040.

The previous prime is 550008799. The next prime is 550008817. The reversal of 550008809 is 908800055.

550008809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550008809 - 2⁸ = 550008553 is a prime.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (550008839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24719 + ... + 41364.

It is an arithmetic number, because the mean of its divisors is an integer number (41632920).

Almost surely, 2^550008809 is an apocalyptic number.

It is an amenable number.

550008809 is a deficient number, since it is larger than the sum of its proper divisors (116117911).

550008809 is a wasteful number, since it uses less digits than its factorization.

550008809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66160.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 550008809 is about 23452.2666068762. The cubic root of 550008809 is about 819.3256447598.

The spelling of 550008809 in words is "five hundred fifty million, eight thousand, eight hundred nine".