530523220 has 12 divisors (see below), whose sum is σ = 1114098804. Its totient is φ = 212209280.

The previous prime is 530523211. The next prime is 530523229. The reversal of 530523220 is 22325035.

It is an interprime number because it is at equal distance from previous prime (530523211) and next prime (530523229).

It can be written as a sum of positive squares in 2 ways, for example, as 98049604 + 432473616 = 9902^2 + 20796^2 .

It is a junction number, because it is equal to n+sod(n) for n = 530523191 and 530523200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530523229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13263061 + ... + 13263100.

It is an arithmetic number, because the mean of its divisors is an integer number (92841567).

Almost surely, 2^530523220 is an apocalyptic number.

It is an amenable number.

530523220 is an abundant number, since it is smaller than the sum of its proper divisors (583575584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530523220 is a wasteful number, since it uses less digits than its factorization.

530523220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26526170 (or 26526168 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 530523220 is about 23033.0896755081. The cubic root of 530523220 is about 809.5334507788.

Adding to 530523220 its reverse (22325035), we get a palindrome (552848255).

The spelling of 530523220 in words is "five hundred thirty million, five hundred twenty-three thousand, two hundred twenty".