5581303809 has 16 divisors (see below), whose sum is σ = 7945884672. Its totient is φ = 3476320848.

The previous prime is 5581303799. The next prime is 5581303811. The reversal of 5581303809 is 9083031855.

It is not a de Polignac number, because 5581303809 - 2²⁴ = 5564526593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5581303009) 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, 937597 + ... + 943530.

It is an arithmetic number, because the mean of its divisors is an integer number (496617792).

Almost surely, 2^5581303809 is an apocalyptic number.

It is an amenable number.

5581303809 is a deficient number, since it is larger than the sum of its proper divisors (2364580863).

5581303809 is a wasteful number, since it uses less digits than its factorization.

5581303809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881196.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 5581303809 is about 74708.1241164574. The cubic root of 5581303809 is about 1773.8295592905.

The spelling of 5581303809 in words is "five billion, five hundred eighty-one million, three hundred three thousand, eight hundred nine".