5243534389 has 2 divisors, whose sum is σ = 5243534390. Its totient is φ = 5243534388.

The previous prime is 5243534347. The next prime is 5243534407. The reversal of 5243534389 is 9834353425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3040640164 + 2202894225 = 55142^2 + 46935^2 .

It is a cyclic number.

It is not a de Polignac number, because 5243534389 - 2²¹ = 5241437237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5243534189) 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 as a sum of consecutive naturals, namely, 2621767194 + 2621767195.

It is an arithmetic number, because the mean of its divisors is an integer number (2621767195).

Almost surely, 2^5243534389 is an apocalyptic number.

It is an amenable number.

5243534389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5243534389 is an equidigital number, since it uses as much as digits as its factorization.

5243534389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 46.

The square root of 5243534389 is about 72412.2530308235. The cubic root of 5243534389 is about 1737.2995488367.

The spelling of 5243534389 in words is "five billion, two hundred forty-three million, five hundred thirty-four thousand, three hundred eighty-nine".