530523689 has 2 divisors, whose sum is σ = 530523690. Its totient is φ = 530523688.

The previous prime is 530523671. The next prime is 530523691. The reversal of 530523689 is 986325035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529368064 + 1155625 = 23008^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 530523689 - 2¹² = 530519593 is a prime.

Together with 530523691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (530523629) 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, 265261844 + 265261845.

It is an arithmetic number, because the mean of its divisors is an integer number (265261845).

Almost surely, 2^530523689 is an apocalyptic number.

It is an amenable number.

530523689 is a deficient number, since it is larger than the sum of its proper divisors (1).

530523689 is an equidigital number, since it uses as much as digits as its factorization.

530523689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 530523689 is about 23033.0998565108. The cubic root of 530523689 is about 809.5336893301.

The spelling of 530523689 in words is "five hundred thirty million, five hundred twenty-three thousand, six hundred eighty-nine".