530520305 has 24 divisors (see below), whose sum is σ = 741859560. Its totient is φ = 363148800.

The previous prime is 530520293. The next prime is 530520317. The reversal of 530520305 is 503025035.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (530520293) and next prime (530520317).

It can be written as a sum of positive squares in 4 ways, for example, as 258534241 + 271986064 = 16079^2 + 16492^2 .

It is not a de Polignac number, because 530520305 - 2¹⁰ = 530519281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170201 + ... + 173289.

It is an arithmetic number, because the mean of its divisors is an integer number (30910815).

Almost surely, 2^530520305 is an apocalyptic number.

It is an amenable number.

530520305 is a deficient number, since it is larger than the sum of its proper divisors (211339255).

530520305 is a wasteful number, since it uses less digits than its factorization.

530520305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3809 (or 3802 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 530520305 is about 23033.0263968937. The cubic root of 530520305 is about 809.5319680951.

The spelling of 530520305 in words is "five hundred thirty million, five hundred twenty thousand, three hundred five".