5613433621 has 2 divisors, whose sum is σ = 5613433622. Its totient is φ = 5613433620.

The previous prime is 5613433583. The next prime is 5613433681. The reversal of 5613433621 is 1263343165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4961652721 + 651780900 = 70439^2 + 25530^2 .

It is a cyclic number.

It is not a de Polignac number, because 5613433621 - 2⁷ = 5613433493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5613433681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2806716810 + 2806716811.

It is an arithmetic number, because the mean of its divisors is an integer number (2806716811).

Almost surely, 2^5613433621 is an apocalyptic number.

It is an amenable number.

5613433621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5613433621 is an equidigital number, since it uses as much as digits as its factorization.

5613433621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 34.

The square root of 5613433621 is about 74922.8511270093. The cubic root of 5613433621 is about 1777.2268416817.

Adding to 5613433621 its reverse (1263343165), we get a palindrome (6876776786).

The spelling of 5613433621 in words is "five billion, six hundred thirteen million, four hundred thirty-three thousand, six hundred twenty-one".