2544442541 has 2 divisors, whose sum is σ = 2544442542. Its totient is φ = 2544442540.

The previous prime is 2544442531. The next prime is 2544442543. The reversal of 2544442541 is 1452444452.

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., 1308920041 + 1235522500 = 36179^2 + 35150^2 .

It is a cyclic number.

It is not a de Polignac number, because 2544442541 - 2¹⁰ = 2544441517 is a prime.

Together with 2544442543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2544442543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272221270 + 1272221271.

It is an arithmetic number, because the mean of its divisors is an integer number (1272221271).

Almost surely, 2^2544442541 is an apocalyptic number.

It is an amenable number.

2544442541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544442541 is an equidigital number, since it uses as much as digits as its factorization.

2544442541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102400, while the sum is 35.

The square root of 2544442541 is about 50442.4676339293. The cubic root of 2544442541 is about 1365.2039913928.

Adding to 2544442541 its reverse (1452444452), we get a palindrome (3996886993).

The spelling of 2544442541 in words is "two billion, five hundred forty-four million, four hundred forty-two thousand, five hundred forty-one".