5236821563 has 4 divisors (see below), whose sum is σ = 5237670120. Its totient is φ = 5235973008.

The previous prime is 5236821511. The next prime is 5236821587. The reversal of 5236821563 is 3651286325.

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 5236821563 - 2²⁰ = 5235772987 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 5236821563.

It is not an unprimeable number, because it can be changed into a prime (5236821463) 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, 414953 + ... + 427386.

It is an arithmetic number, because the mean of its divisors is an integer number (1309417530).

Almost surely, 2^5236821563 is an apocalyptic number.

5236821563 is a deficient number, since it is larger than the sum of its proper divisors (848557).

5236821563 is an equidigital number, since it uses as much as digits as its factorization.

5236821563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848556.

The product of its digits is 259200, while the sum is 41.

The square root of 5236821563 is about 72365.8867353949. The cubic root of 5236821563 is about 1736.5578627307.

The spelling of 5236821563 in words is "five billion, two hundred thirty-six million, eight hundred twenty-one thousand, five hundred sixty-three".