5302543043521 has 2 divisors, whose sum is σ = 5302543043522. Its totient is φ = 5302543043520.

The previous prime is 5302543043477. The next prime is 5302543043527. The reversal of 5302543043521 is 1253403452035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3114995554225 + 2187547489296 = 1764935^2 + 1479036^2 .

It is a cyclic number.

It is not a de Polignac number, because 5302543043521 - 2⁹ = 5302543043009 is a prime.

It is not a weakly prime, because it can be changed into another prime (5302543043527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2651271521760 + 2651271521761.

It is an arithmetic number, because the mean of its divisors is an integer number (2651271521761).

Almost surely, 2^{5302543043521} is an apocalyptic number.

It is an amenable number.

5302543043521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5302543043521 is an equidigital number, since it uses as much as digits as its factorization.

5302543043521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 5302543043521 its reverse (1253403452035), we get a palindrome (6555946495556).

The spelling of 5302543043521 in words is "five trillion, three hundred two billion, five hundred forty-three million, forty-three thousand, five hundred twenty-one".