563532561 has 12 divisors (see below), whose sum is σ = 814554000. Its totient is φ = 375428760.

The previous prime is 563532559. The next prime is 563532569. The reversal of 563532561 is 165235365.

563532561 is a `hidden beast` number, since 5 + 63 + 5 + 32 + 561 = 666.

It is not a de Polignac number, because 563532561 - 2¹ = 563532559 is a prime.

It is a super-3 number, since 3×563532561³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (563532569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7395 + ... + 34376.

It is an arithmetic number, because the mean of its divisors is an integer number (67879500).

Almost surely, 2^563532561 is an apocalyptic number.

It is an amenable number.

563532561 is a deficient number, since it is larger than the sum of its proper divisors (251021439).

563532561 is a wasteful number, since it uses less digits than its factorization.

563532561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43276 (or 43273 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 563532561 is about 23738.8407678218. The cubic root of 563532561 is about 825.9866058875.

The spelling of 563532561 in words is "five hundred sixty-three million, five hundred thirty-two thousand, five hundred sixty-one".