Adding to 5820 its reverse (285), we get a triangular number (6105 = T110).
5820 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.
It is a plaindrome in base 16.
It is a nialpdrome in base 11.
It is a zygodrome in base 11.
It is a self number, because there is not a number n which added to its sum of digits gives 5820.
It is a congruent number.
25820 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 5820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
5820 is a wasteful number, since it uses less digits than its factorization.
5820 is an evil number, because the sum of its binary digits is even.
The square root of 5820 is about 76.2889244910. The cubic root of 5820 is about 17.9876458438.
The spelling of 5820 in words is "five thousand, eight hundred twenty".