5820505 has 4 divisors (see below), whose sum is σ = 6984612. Its totient is φ = 4656400.

The previous prime is 5820499. The next prime is 5820533. The reversal of 5820505 is 5050285.

5820505 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3549456 + 2271049 = 1884^2 + 1507^2 .

It is not a de Polignac number, because 5820505 - 2³ = 5820497 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5820505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582046 + ... + 582055.

It is an arithmetic number, because the mean of its divisors is an integer number (1746153).

Almost surely, 2^5820505 is an apocalyptic number.

It is an amenable number.

5820505 is a deficient number, since it is larger than the sum of its proper divisors (1164107).

5820505 is a wasteful number, since it uses less digits than its factorization.

5820505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164106.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 5820505 is about 2412.5722787100. The cubic root of 5820505 is about 179.8816608994.

It can be divided in two parts, 5820 and 505, that multiplied together give a triangular number (2939100 = T₂₄₂₄).

The spelling of 5820505 in words is "five million, eight hundred twenty thousand, five hundred five".