563531243 has 24 divisors (see below), whose sum is σ = 634729200. Its totient is φ = 499783680.

The previous prime is 563531173. The next prime is 563531251. The reversal of 563531243 is 342135365.

It is not a de Polignac number, because 563531243 - 2¹² = 563527147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563531273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1377623 + ... + 1378031.

It is an arithmetic number, because the mean of its divisors is an integer number (26447050).

Almost surely, 2^563531243 is an apocalyptic number.

563531243 is a deficient number, since it is larger than the sum of its proper divisors (71197957).

563531243 is a wasteful number, since it uses less digits than its factorization.

563531243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 672 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

The square root of 563531243 is about 23738.8130073936. The cubic root of 563531243 is about 825.9859619429.

The spelling of 563531243 in words is "five hundred sixty-three million, five hundred thirty-one thousand, two hundred forty-three".