5442005021 has 2 divisors, whose sum is σ = 5442005022. Its totient is φ = 5442005020.

The previous prime is 5442005003. The next prime is 5442005033. The reversal of 5442005021 is 1205002445.

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., 4181044921 + 1260960100 = 64661^2 + 35510^2 .

It is a cyclic number.

It is not a de Polignac number, because 5442005021 - 2¹⁸ = 5441742877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5442025021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721002510 + 2721002511.

It is an arithmetic number, because the mean of its divisors is an integer number (2721002511).

Almost surely, 2^5442005021 is an apocalyptic number.

It is an amenable number.

5442005021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5442005021 is an equidigital number, since it uses as much as digits as its factorization.

5442005021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 5442005021 is about 73769.9465975135. The cubic root of 5442005021 is about 1758.9479142793.

Adding to 5442005021 its reverse (1205002445), we get a palindrome (6647007466).

The spelling of 5442005021 in words is "five billion, four hundred forty-two million, five thousand, twenty-one".