5563561523 has 4 divisors (see below), whose sum is σ = 5991527808. Its totient is φ = 5135595240.

The previous prime is 5563561519. The next prime is 5563561561. The reversal of 5563561523 is 3251653655.

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 5563561523 - 2² = 5563561519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5563567523) 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, 213983123 + ... + 213983148.

It is an arithmetic number, because the mean of its divisors is an integer number (1497881952).

Almost surely, 2^5563561523 is an apocalyptic number.

5563561523 is a deficient number, since it is larger than the sum of its proper divisors (427966285).

5563561523 is a wasteful number, since it uses less digits than its factorization.

5563561523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427966284.

The product of its digits is 405000, while the sum is 41.

The square root of 5563561523 is about 74589.2855777557. The cubic root of 5563561523 is about 1771.9479679523.

The spelling of 5563561523 in words is "five billion, five hundred sixty-three million, five hundred sixty-one thousand, five hundred twenty-three".