563503439 has 2 divisors, whose sum is σ = 563503440. Its totient is φ = 563503438.

The previous prime is 563503397. The next prime is 563503441. The reversal of 563503439 is 934305365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 563503439 - 2²⁰ = 562454863 is a prime.

It is a super-2 number, since 2×563503439² = 635072251529653442, which contains 22 as substring.

Together with 563503441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563503459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281751719 + 281751720.

It is an arithmetic number, because the mean of its divisors is an integer number (281751720).

Almost surely, 2^563503439 is an apocalyptic number.

563503439 is a deficient number, since it is larger than the sum of its proper divisors (1).

563503439 is an equidigital number, since it uses as much as digits as its factorization.

563503439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 38.

The square root of 563503439 is about 23738.2273769547. The cubic root of 563503439 is about 825.9723773122.

The spelling of 563503439 in words is "five hundred sixty-three million, five hundred three thousand, four hundred thirty-nine".