5534243021 has 2 divisors, whose sum is σ = 5534243022. Its totient is φ = 5534243020.

The previous prime is 5534243009. The next prime is 5534243089. The reversal of 5534243021 is 1203424355.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3286155625 + 2248087396 = 57325^2 + 47414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5534243021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5534243521) 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, 2767121510 + 2767121511.

It is an arithmetic number, because the mean of its divisors is an integer number (2767121511).

Almost surely, 2^5534243021 is an apocalyptic number.

It is an amenable number.

5534243021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5534243021 is an equidigital number, since it uses as much as digits as its factorization.

5534243021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 5534243021 is about 74392.4930419730. The cubic root of 5534243021 is about 1768.8299182575.

Adding to 5534243021 its reverse (1203424355), we get a palindrome (6737667376).

The spelling of 5534243021 in words is "five billion, five hundred thirty-four million, two hundred forty-three thousand, twenty-one".