5500809 has 24 divisors (see below), whose sum is σ = 8503560. Its totient is φ = 3414528.

The previous prime is 5500801. The next prime is 5500811. The reversal of 5500809 is 9080055.

It can be written as a sum of positive squares in 4 ways, for example, as 2250000 + 3250809 = 1500^2 + 1803^2 .

It is not a de Polignac number, because 5500809 - 2³ = 5500801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23907 + ... + 24135.

It is an arithmetic number, because the mean of its divisors is an integer number (354315).

Almost surely, 2^5500809 is an apocalyptic number.

It is an amenable number.

5500809 is a deficient number, since it is larger than the sum of its proper divisors (3002751).

5500809 is a wasteful number, since it uses less digits than its factorization.

5500809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 5500809 is about 2345.3803529492. The cubic root of 5500809 is about 176.5260710444.

The spelling of 5500809 in words is "five million, five hundred thousand, eight hundred nine".