531717497 has 2 divisors, whose sum is σ = 531717498. Its totient is φ = 531717496.

The previous prime is 531717463. The next prime is 531717503. The reversal of 531717497 is 794717135.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 531717481 + 16 = 23059^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 531717497 - 2¹⁰ = 531716473 is a prime.

It is not a weakly prime, because it can be changed into another prime (531717437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265858748 + 265858749.

It is an arithmetic number, because the mean of its divisors is an integer number (265858749).

Almost surely, 2^531717497 is an apocalyptic number.

It is an amenable number.

531717497 is a deficient number, since it is larger than the sum of its proper divisors (1).

531717497 is an equidigital number, since it uses as much as digits as its factorization.

531717497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 44.

The square root of 531717497 is about 23059.0003469361. Note that the first 3 decimals coincide. The cubic root of 531717497 is about 810.1404506742.

The spelling of 531717497 in words is "five hundred thirty-one million, seven hundred seventeen thousand, four hundred ninety-seven".