563668650 has 144 divisors (see below), whose sum is σ = 1601683200. Its totient is φ = 141886080.

The previous prime is 563668627. The next prime is 563668657. The reversal of 563668650 is 56866365.

563668650 is a `hidden beast` number, since 5 + 636 + 6 + 8 + 6 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 563668596 and 563668605.

It is not an unprimeable number, because it can be changed into a prime (563668657) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 612891 + ... + 613809.

It is an arithmetic number, because the mean of its divisors is an integer number (11122800).

Almost surely, 2^563668650 is an apocalyptic number.

563668650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 563668650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800841600).

563668650 is an abundant number, since it is smaller than the sum of its proper divisors (1038014550).

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

563668650 is a wasteful number, since it uses less digits than its factorization.

563668650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The square root of 563668650 is about 23741.7069731728. The cubic root of 563668650 is about 826.0530904479.

The spelling of 563668650 in words is "five hundred sixty-three million, six hundred sixty-eight thousand, six hundred fifty".