550905009 has 8 divisors (see below), whose sum is σ = 777748320. Its totient is φ = 345665856.

The previous prime is 550904989. The next prime is 550905011. The reversal of 550905009 is 900509055.

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

It is not a de Polignac number, because 550905009 - 2⁷ = 550904881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550905029) 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, 5400979 + ... + 5401080.

It is an arithmetic number, because the mean of its divisors is an integer number (97218540).

Almost surely, 2^550905009 is an apocalyptic number.

It is an amenable number.

550905009 is a deficient number, since it is larger than the sum of its proper divisors (226843311).

550905009 is a wasteful number, since it uses less digits than its factorization.

550905009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802079.

The product of its (nonzero) digits is 10125, while the sum is 33.

The square root of 550905009 is about 23471.3657250702. The cubic root of 550905009 is about 819.7704141118.

The spelling of 550905009 in words is "five hundred fifty million, nine hundred five thousand, nine".