531046513 has 2 divisors, whose sum is σ = 531046514. Its totient is φ = 531046512.

The previous prime is 531046501. The next prime is 531046519. The reversal of 531046513 is 315640135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311769649 + 219276864 = 17657^2 + 14808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531046513 is a prime.

It is not a weakly prime, because it can be changed into another prime (531046519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265523256 + 265523257.

It is an arithmetic number, because the mean of its divisors is an integer number (265523257).

Almost surely, 2^531046513 is an apocalyptic number.

It is an amenable number.

531046513 is a deficient number, since it is larger than the sum of its proper divisors (1).

531046513 is an equidigital number, since it uses as much as digits as its factorization.

531046513 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 531046513 is about 23044.4464676416. The cubic root of 531046513 is about 809.7995302296.

Adding to 531046513 its reverse (315640135), we get a palindrome (846686648).

The spelling of 531046513 in words is "five hundred thirty-one million, forty-six thousand, five hundred thirteen".