563905885 has 4 divisors (see below), whose sum is σ = 676687068. Its totient is φ = 451124704.

The previous prime is 563905879. The next prime is 563905891. The reversal of 563905885 is 588509365.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (563905879) and next prime (563905891).

It can be written as a sum of positive squares in 2 ways, for example, as 260693316 + 303212569 = 16146^2 + 17413^2 .

It is a cyclic number.

It is not a de Polignac number, because 563905885 - 2⁹ = 563905373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56390584 + ... + 56390593.

It is an arithmetic number, because the mean of its divisors is an integer number (169171767).

Almost surely, 2^563905885 is an apocalyptic number.

It is an amenable number.

563905885 is a deficient number, since it is larger than the sum of its proper divisors (112781183).

563905885 is a wasteful number, since it uses less digits than its factorization.

563905885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112781182.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 563905885 is about 23746.7026132051. The cubic root of 563905885 is about 826.1689630257.

The spelling of 563905885 in words is "five hundred sixty-three million, nine hundred five thousand, eight hundred eighty-five".