531432263 has 2 divisors, whose sum is σ = 531432264. Its totient is φ = 531432262.

The previous prime is 531432247. The next prime is 531432271. The reversal of 531432263 is 362234135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531432263 - 2⁴ = 531432247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531432203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265716131 + 265716132.

It is an arithmetic number, because the mean of its divisors is an integer number (265716132).

Almost surely, 2^531432263 is an apocalyptic number.

531432263 is a deficient number, since it is larger than the sum of its proper divisors (1).

531432263 is an equidigital number, since it uses as much as digits as its factorization.

531432263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 29.

The square root of 531432263 is about 23052.8146437696. The cubic root of 531432263 is about 809.9955611198.

Adding to 531432263 its reverse (362234135), we get a palindrome (893666398).

The spelling of 531432263 in words is "five hundred thirty-one million, four hundred thirty-two thousand, two hundred sixty-three".