531680263 has 2 divisors, whose sum is σ = 531680264. Its totient is φ = 531680262.

The previous prime is 531680257. The next prime is 531680291. The reversal of 531680263 is 362086135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531680263 - 2²¹ = 529583111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531680563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265840131 + 265840132.

It is an arithmetic number, because the mean of its divisors is an integer number (265840132).

Almost surely, 2^531680263 is an apocalyptic number.

531680263 is a deficient number, since it is larger than the sum of its proper divisors (1).

531680263 is an equidigital number, since it uses as much as digits as its factorization.

531680263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 531680263 is about 23058.1929690945. The cubic root of 531680263 is about 810.1215399595.

The spelling of 531680263 in words is "five hundred thirty-one million, six hundred eighty thousand, two hundred sixty-three".