5243222549 has 2 divisors, whose sum is σ = 5243222550. Its totient is φ = 5243222548.

The previous prime is 5243222527. The next prime is 5243222563. The reversal of 5243222549 is 9452223425.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5242773649 + 448900 = 72407^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 5243222549 - 2²⁰ = 5242173973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5243222449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621611274 + 2621611275.

It is an arithmetic number, because the mean of its divisors is an integer number (2621611275).

Almost surely, 2^5243222549 is an apocalyptic number.

It is an amenable number.

5243222549 is a deficient number, since it is larger than the sum of its proper divisors (1).

5243222549 is an equidigital number, since it uses as much as digits as its factorization.

5243222549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 38.

The square root of 5243222549 is about 72410.0997720622. The cubic root of 5243222549 is about 1737.2651083118.

The spelling of 5243222549 in words is "five billion, two hundred forty-three million, two hundred twenty-two thousand, five hundred forty-nine".