563181228 has 48 divisors (see below), whose sum is σ = 1477714560. Its totient is φ = 185462352.

The previous prime is 563181221. The next prime is 563181239. The reversal of 563181228 is 822181365.

It is a happy number.

563181228 is a `hidden beast` number, since 5 + 631 + 8 + 12 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 563181192 and 563181201.

It is not an unprimeable number, because it can be changed into a prime (563181221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22450 + ... + 40377.

It is an arithmetic number, because the mean of its divisors is an integer number (30785720).

Almost surely, 2^563181228 is an apocalyptic number.

It is an amenable number.

563181228 is an abundant number, since it is smaller than the sum of its proper divisors (914533332).

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

563181228 is a wasteful number, since it uses less digits than its factorization.

563181228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62923 (or 62915 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 563181228 is about 23731.4396529161. The cubic root of 563181228 is about 825.8149170916.

The spelling of 563181228 in words is "five hundred sixty-three million, one hundred eighty-one thousand, two hundred twenty-eight".