563903536897 has 4 divisors (see below), whose sum is σ = 573147857236. Its totient is φ = 554659216560.

The previous prime is 563903536883. The next prime is 563903536919. The reversal of 563903536897 is 798635309365.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23802009841 + 540101527056 = 154279^2 + 734916^2 .

It is a cyclic number.

It is not a de Polignac number, because 563903536897 - 2³⁵ = 529543798529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563903536837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4622160078 + ... + 4622160199.

It is an arithmetic number, because the mean of its divisors is an integer number (143286964309).

Almost surely, 2^563903536897 is an apocalyptic number.

It is an amenable number.

563903536897 is a deficient number, since it is larger than the sum of its proper divisors (9244320339).

563903536897 is an equidigital number, since it uses as much as digits as its factorization.

563903536897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9244320338.

The product of its (nonzero) digits is 110224800, while the sum is 64.

The spelling of 563903536897 in words is "five hundred sixty-three billion, nine hundred three million, five hundred thirty-six thousand, eight hundred ninety-seven".