531663029 has 2 divisors, whose sum is σ = 531663030. Its totient is φ = 531663028.

The previous prime is 531662993. The next prime is 531663071. The reversal of 531663029 is 920366135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323640100 + 208022929 = 17990^2 + 14423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531663029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531663029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531663329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265831514 + 265831515.

It is an arithmetic number, because the mean of its divisors is an integer number (265831515).

Almost surely, 2^531663029 is an apocalyptic number.

It is an amenable number.

531663029 is a deficient number, since it is larger than the sum of its proper divisors (1).

531663029 is an equidigital number, since it uses as much as digits as its factorization.

531663029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 531663029 is about 23057.8192594183. The cubic root of 531663029 is about 810.1127867129.

The spelling of 531663029 in words is "five hundred thirty-one million, six hundred sixty-three thousand, twenty-nine".