5855809 has 4 divisors (see below), whose sum is σ = 5955120. Its totient is φ = 5756500.

The previous prime is 5855797. The next prime is 5855833. The reversal of 5855809 is 9085585.

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 5855809 - 2¹³ = 5847617 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5855209) 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, 49567 + ... + 49684.

It is an arithmetic number, because the mean of its divisors is an integer number (1488780).

Almost surely, 2^5855809 is an apocalyptic number.

5855809 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

5855809 is a deficient number, since it is larger than the sum of its proper divisors (99311).

5855809 is an equidigital number, since it uses as much as digits as its factorization.

5855809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99310.

The product of its (nonzero) digits is 72000, while the sum is 40.

The square root of 5855809 is about 2419.8778894812. The cubic root of 5855809 is about 180.2446159814.

The spelling of 5855809 in words is "five million, eight hundred fifty-five thousand, eight hundred nine".