5220581 has 4 divisors (see below), whose sum is σ = 5527692. Its totient is φ = 4913472.

The previous prime is 5220569. The next prime is 5220599. The reversal of 5220581 is 1850225.

5220581 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 1779556 + 3441025 = 1334^2 + 1855^2 .

It is a cyclic number.

It is not a de Polignac number, because 5220581 - 2¹⁴ = 5204197 is a prime.

It is a super-2 number, since 2×5220581² = 54508931955122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5220511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153530 + ... + 153563.

It is an arithmetic number, because the mean of its divisors is an integer number (1381923).

Almost surely, 2^5220581 is an apocalyptic number.

It is an amenable number.

5220581 is a deficient number, since it is larger than the sum of its proper divisors (307111).

5220581 is a wasteful number, since it uses less digits than its factorization.

5220581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307110.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5220581 is about 2284.8590766172. The cubic root of 5220581 is about 173.4760851468.

The spelling of 5220581 in words is "five million, two hundred twenty thousand, five hundred eighty-one".