63548705563 has 4 divisors (see below), whose sum is σ = 72627092080. Its totient is φ = 54470319048.

The previous prime is 63548705543. The next prime is 63548705603. The reversal of 63548705563 is 36550784536.

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

It is a cyclic number.

It is not a de Polignac number, because 63548705563 - 2²⁵ = 63515151131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63548705563.

It is not an unprimeable number, because it can be changed into a prime (63548705543) 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, 4539193248 + ... + 4539193261.

It is an arithmetic number, because the mean of its divisors is an integer number (18156773020).

Almost surely, 2^63548705563 is an apocalyptic number.

63548705563 is a deficient number, since it is larger than the sum of its proper divisors (9078386517).

63548705563 is an equidigital number, since it uses as much as digits as its factorization.

63548705563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078386516.

The product of its (nonzero) digits is 9072000, while the sum is 52.

The spelling of 63548705563 in words is "sixty-three billion, five hundred forty-eight million, seven hundred five thousand, five hundred sixty-three".