563261568 has 64 divisors (see below), whose sum is σ = 1544459520. Its totient is φ = 181693440.

The previous prime is 563261557. The next prime is 563261597. The reversal of 563261568 is 865162365.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11755 + ... + 35562.

It is an arithmetic number, because the mean of its divisors is an integer number (24132180).

Almost surely, 2^563261568 is an apocalyptic number.

It is an amenable number.

563261568 is an abundant number, since it is smaller than the sum of its proper divisors (981197952).

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

563261568 is a wasteful number, since it uses less digits than its factorization.

563261568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47365 (or 47353 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 563261568 is about 23733.1322837926. The cubic root of 563261568 is about 825.8541837980.

The spelling of 563261568 in words is "five hundred sixty-three million, two hundred sixty-one thousand, five hundred sixty-eight".