563265828 has 72 divisors (see below), whose sum is σ = 1519644672. Its totient is φ = 175295232.

The previous prime is 563265823. The next prime is 563265839. The reversal of 563265828 is 828562365.

563265828 is a `hidden beast` number, since 5 + 63 + 2 + 6 + 582 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (563265823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74101 + ... + 81347.

It is an arithmetic number, because the mean of its divisors is an integer number (21106176).

Almost surely, 2^563265828 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 563265828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759822336).

563265828 is an abundant number, since it is smaller than the sum of its proper divisors (956378844).

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

563265828 is a wasteful number, since it uses less digits than its factorization.

563265828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7401 (or 7396 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 563265828 is about 23733.2220315742. Note that the first 3 decimals coincide. The cubic root of 563265828 is about 825.8562657970.

The spelling of 563265828 in words is "five hundred sixty-three million, two hundred sixty-five thousand, eight hundred twenty-eight".