5811020 has 48 divisors (see below), whose sum is σ = 12972960. Its totient is φ = 2182656.

The previous prime is 5811011. The next prime is 5811061. The reversal of 5811020 is 201185.

It is a self number, because there is not a number n which added to its sum of digits gives 5811020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24824 + ... + 25056.

It is an arithmetic number, because the mean of its divisors is an integer number (270270).

Almost surely, 2^5811020 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 5811020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6486480).

5811020 is an abundant number, since it is smaller than the sum of its proper divisors (7161940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5811020 is a wasteful number, since it uses less digits than its factorization.

5811020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 5811020 is about 2410.6057330057. The cubic root of 5811020 is about 179.7838970353.

The spelling of 5811020 in words is "five million, eight hundred eleven thousand, twenty".