5543809 has 4 divisors (see below), whose sum is σ = 5574960. Its totient is φ = 5512660.

The previous prime is 5543779. The next prime is 5543831. The reversal of 5543809 is 9083455.

5543809 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5543809 - 2⁹ = 5543297 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5544809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15307 + ... + 15664.

It is an arithmetic number, because the mean of its divisors is an integer number (1393740).

Almost surely, 2^5543809 is an apocalyptic number.

It is an amenable number.

5543809 is a deficient number, since it is larger than the sum of its proper divisors (31151).

5543809 is a wasteful number, since it uses less digits than its factorization.

5543809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31150.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 5543809 is about 2354.5294646702. The cubic root of 5543809 is about 176.9848476714.

The spelling of 5543809 in words is "five million, five hundred forty-three thousand, eight hundred nine".