563286636 has 168 divisors, whose sum is σ = 1708804944. Its totient is φ = 160496640.

The previous prime is 563286623. The next prime is 563286667. The reversal of 563286636 is 636682365.

563286636 is a `hidden beast` number, since 5 + 6 + 3 + 2 + 8 + 6 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 563286591 and 563286600.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 544776 + ... + 545808.

It is an arithmetic number, because the mean of its divisors is an integer number (10171458).

Almost surely, 2^563286636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563286636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854402472).

563286636 is an abundant number, since it is smaller than the sum of its proper divisors (1145518308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

563286636 is a wasteful number, since it uses less digits than its factorization.

563286636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1066 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 563286636 is about 23733.6604003681. The cubic root of 563286636 is about 825.8664351846.

The spelling of 563286636 in words is "five hundred sixty-three million, two hundred eighty-six thousand, six hundred thirty-six".