563705856 has 288 divisors, whose sum is σ = 1977786720. Its totient is φ = 150994944.

The previous prime is 563705789. The next prime is 563705887. The reversal of 563705856 is 658507365.

563705856 is a `hidden beast` number, since 5 + 63 + 7 + 0 + 585 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2193280 + ... + 2193536.

It is an arithmetic number, because the mean of its divisors is an integer number (6867315).

Almost surely, 2^563705856 is an apocalyptic number.

563705856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563705856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988893360).

563705856 is an abundant number, since it is smaller than the sum of its proper divisors (1414080864).

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

563705856 is a wasteful number, since it uses less digits than its factorization.

563705856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 563705856 is about 23742.4905180564. The cubic root of 563705856 is about 826.0712651061.

It can be divided in two parts, 56370 and 5856, that added together give a palindrome (62226).

The spelling of 563705856 in words is "five hundred sixty-three million, seven hundred five thousand, eight hundred fifty-six".