6506063563 has 4 divisors (see below), whose sum is σ = 6506241840. Its totient is φ = 6505885288.

The previous prime is 6506063561. The next prime is 6506063611. The reversal of 6506063563 is 3653606056.

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 6506063563 - 2¹ = 6506063561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6506063561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12343 + ... + 114736.

It is an arithmetic number, because the mean of its divisors is an integer number (1626560460).

Almost surely, 2^6506063563 is an apocalyptic number.

6506063563 is a deficient number, since it is larger than the sum of its proper divisors (178277).

6506063563 is a wasteful number, since it uses less digits than its factorization.

6506063563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178276.

The product of its (nonzero) digits is 291600, while the sum is 40.

The square root of 6506063563 is about 80660.1733385194. The cubic root of 6506063563 is about 1866.8357138607.

The spelling of 6506063563 in words is "six billion, five hundred six million, sixty-three thousand, five hundred sixty-three".