530525321 has 4 divisors (see below), whose sum is σ = 531050052. Its totient is φ = 530000592.

The previous prime is 530525287. The next prime is 530525327. The reversal of 530525321 is 123525035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123525035 = 5 ⋅24705007.

It can be written as a sum of positive squares in 2 ways, for example, as 162307600 + 368217721 = 12740^2 + 19189^2 .

It is a cyclic number.

It is not a de Polignac number, because 530525321 - 2⁶ = 530525257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (530525327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260846 + ... + 262871.

It is an arithmetic number, because the mean of its divisors is an integer number (132762513).

Almost surely, 2^530525321 is an apocalyptic number.

It is an amenable number.

530525321 is a deficient number, since it is larger than the sum of its proper divisors (524731).

530525321 is a wasteful number, since it uses less digits than its factorization.

530525321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524730.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 530525321 is about 23033.1352837602. The cubic root of 530525321 is about 809.5345194267.

The spelling of 530525321 in words is "five hundred thirty million, five hundred twenty-five thousand, three hundred twenty-one".