5220513 has 24 divisors (see below), whose sum is σ = 8073000. Its totient is φ = 3239424.

The previous prime is 5220511. The next prime is 5220521. The reversal of 5220513 is 3150225.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1580049 + 3640464 = 1257^2 + 1908^2 .

It is not a de Polignac number, because 5220513 - 2¹ = 5220511 is a prime.

It is a Curzon 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 (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22683 + ... + 22911.

It is an arithmetic number, because the mean of its divisors is an integer number (336375).

Almost surely, 2^5220513 is an apocalyptic number.

It is an amenable number.

5220513 is a deficient number, since it is larger than the sum of its proper divisors (2852487).

5220513 is a wasteful number, since it uses less digits than its factorization.

5220513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 5220513 is about 2284.8441960011. The cubic root of 5220513 is about 173.4753319468.

Adding to 5220513 its reverse (3150225), we get a palindrome (8370738).

The spelling of 5220513 in words is "five million, two hundred twenty thousand, five hundred thirteen".