5305021 has 4 divisors (see below), whose sum is σ = 5318044. Its totient is φ = 5292000.

The previous prime is 5305007. The next prime is 5305033. The reversal of 5305021 is 1205035.

5305021 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 617796 + 4687225 = 786^2 + 2165^2 .

It is a 3-Lehmer number, since φ(5305021) divides (5305021-1)³.

It is a cyclic number.

It is not a de Polignac number, because 5305021 - 2⁵ = 5304989 is a prime.

It is a Duffinian number.

5305021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5304986 and 5305004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5305721) 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, 5880 + ... + 6721.

It is an arithmetic number, because the mean of its divisors is an integer number (1329511).

Almost surely, 2^5305021 is an apocalyptic number.

It is an amenable number.

5305021 is a deficient number, since it is larger than the sum of its proper divisors (13023).

5305021 is a wasteful number, since it uses less digits than its factorization.

5305021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13022.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 5305021 is about 2303.2631200104. The cubic root of 5305021 is about 174.4063804900.

The spelling of 5305021 in words is "five million, three hundred five thousand, twenty-one".