530005221 has 8 divisors (see below), whose sum is σ = 785192960. Its totient is φ = 353336796.

The previous prime is 530005219. The next prime is 530005241. The reversal of 530005221 is 122500035.

It is a happy number.

It is not a de Polignac number, because 530005221 - 2¹ = 530005219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530005194 and 530005203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530005241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9814885 + ... + 9814938.

It is an arithmetic number, because the mean of its divisors is an integer number (98149120).

Almost surely, 2^530005221 is an apocalyptic number.

It is an amenable number.

530005221 is a deficient number, since it is larger than the sum of its proper divisors (255187739).

530005221 is a wasteful number, since it uses less digits than its factorization.

530005221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19629832 (or 19629826 counting only the distinct ones).

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

The square root of 530005221 is about 23021.8422590374. The cubic root of 530005221 is about 809.2698907965.

Adding to 530005221 its reverse (122500035), we get a palindrome (652505256).

The spelling of 530005221 in words is "five hundred thirty million, five thousand, two hundred twenty-one".