2543441513 has 2 divisors, whose sum is σ = 2543441514. Its totient is φ = 2543441512.

The previous prime is 2543441507. The next prime is 2543441557. The reversal of 2543441513 is 3151443452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2542983184 + 458329 = 50428^2 + 677^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543441513 - 2⁴ = 2543441497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2543441513.

It is not a weakly prime, because it can be changed into another prime (2543447513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271720756 + 1271720757.

It is an arithmetic number, because the mean of its divisors is an integer number (1271720757).

Almost surely, 2^2543441513 is an apocalyptic number.

It is an amenable number.

2543441513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543441513 is an equidigital number, since it uses as much as digits as its factorization.

2543441513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 32.

The square root of 2543441513 is about 50432.5441852778. The cubic root of 2543441513 is about 1365.0249362358.

Adding to 2543441513 its reverse (3151443452), we get a palindrome (5694884965).

The spelling of 2543441513 in words is "two billion, five hundred forty-three million, four hundred forty-one thousand, five hundred thirteen".