5442225421 has 2 divisors, whose sum is σ = 5442225422. Its totient is φ = 5442225420.

The previous prime is 5442225413. The next prime is 5442225427. The reversal of 5442225421 is 1245222445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5442012900 + 212521 = 73770^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 5442225421 - 2³ = 5442225413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5442225427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721112710 + 2721112711.

It is an arithmetic number, because the mean of its divisors is an integer number (2721112711).

Almost surely, 2^5442225421 is an apocalyptic number.

It is an amenable number.

5442225421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5442225421 is an equidigital number, since it uses as much as digits as its factorization.

5442225421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25600, while the sum is 31.

The square root of 5442225421 is about 73771.4404156514. The cubic root of 5442225421 is about 1758.9716596260.

Adding to 5442225421 its reverse (1245222445), we get a palindrome (6687447866).

The spelling of 5442225421 in words is "five billion, four hundred forty-two million, two hundred twenty-five thousand, four hundred twenty-one".