530206561 has 2 divisors, whose sum is σ = 530206562. Its totient is φ = 530206560.

The previous prime is 530206543. The next prime is 530206597. The reversal of 530206561 is 165602035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300502225 + 229704336 = 17335^2 + 15156^2 .

It is a cyclic number.

It is not a de Polignac number, because 530206561 - 2⁵ = 530206529 is a prime.

It is a super-2 number, since 2×530206561² = 562237994654893442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (530206661) 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 as a sum of consecutive naturals, namely, 265103280 + 265103281.

It is an arithmetic number, because the mean of its divisors is an integer number (265103281).

Almost surely, 2^530206561 is an apocalyptic number.

It is an amenable number.

530206561 is a deficient number, since it is larger than the sum of its proper divisors (1).

530206561 is an equidigital number, since it uses as much as digits as its factorization.

530206561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 530206561 is about 23026.2146476576. The cubic root of 530206561 is about 809.3723537945.

Adding to 530206561 its reverse (165602035), we get a palindrome (695808596).

The spelling of 530206561 in words is "five hundred thirty million, two hundred six thousand, five hundred sixty-one".