5243543443 has 2 divisors, whose sum is σ = 5243543444. Its totient is φ = 5243543442.

The previous prime is 5243543369. The next prime is 5243543489. The reversal of 5243543443 is 3443453425.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5243543443 - 2¹³ = 5243535251 is a prime.

It is not a weakly prime, because it can be changed into another prime (5243543743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621771721 + 2621771722.

It is an arithmetic number, because the mean of its divisors is an integer number (2621771722).

Almost surely, 2^5243543443 is an apocalyptic number.

5243543443 is a deficient number, since it is larger than the sum of its proper divisors (1).

5243543443 is an equidigital number, since it uses as much as digits as its factorization.

5243543443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 37.

The square root of 5243543443 is about 72412.3155478403. The cubic root of 5243543443 is about 1737.3005487667.

Adding to 5243543443 its reverse (3443453425), we get a palindrome (8686996868).

The spelling of 5243543443 in words is "five billion, two hundred forty-three million, five hundred forty-three thousand, four hundred forty-three".