531500573 has 2 divisors, whose sum is σ = 531500574. Its totient is φ = 531500572.

The previous prime is 531500531. The next prime is 531500587. The reversal of 531500573 is 375005135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372412804 + 159087769 = 19298^2 + 12613^2 .

It is a cyclic number.

It is not a de Polignac number, because 531500573 - 2²⁰ = 530451997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531500513) 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, 265750286 + 265750287.

It is an arithmetic number, because the mean of its divisors is an integer number (265750287).

Almost surely, 2^531500573 is an apocalyptic number.

It is an amenable number.

531500573 is a deficient number, since it is larger than the sum of its proper divisors (1).

531500573 is an equidigital number, since it uses as much as digits as its factorization.

531500573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 531500573 is about 23054.2961939852. The cubic root of 531500573 is about 810.0302650887.

The spelling of 531500573 in words is "five hundred thirty-one million, five hundred thousand, five hundred seventy-three".