9055809 has 12 divisors (see below), whose sum is σ = 14949376. Its totient is φ = 5174712.

The previous prime is 9055777. The next prime is 9055811. The reversal of 9055809 is 9085509.

It is not a de Polignac number, because 9055809 - 2⁵ = 9055777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9055889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71809 + ... + 71934.

Almost surely, 2^9055809 is an apocalyptic number.

It is an amenable number.

9055809 is a deficient number, since it is larger than the sum of its proper divisors (5893567).

9055809 is a wasteful number, since it uses less digits than its factorization.

9055809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143756 (or 143753 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 9055809 is about 3009.2871248852. The cubic root of 9055809 is about 208.4374499669.

The spelling of 9055809 in words is "nine million, fifty-five thousand, eight hundred nine".