2516222543 has 2 divisors, whose sum is σ = 2516222544. Its totient is φ = 2516222542.

The previous prime is 2516222519. The next prime is 2516222557. The reversal of 2516222543 is 3452226152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2516222543 - 2²⁴ = 2499445327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2516222143) 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, 1258111271 + 1258111272.

It is an arithmetic number, because the mean of its divisors is an integer number (1258111272).

Almost surely, 2^2516222543 is an apocalyptic number.

2516222543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516222543 is an equidigital number, since it uses as much as digits as its factorization.

2516222543 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2516222543 is about 50161.9631095116. The cubic root of 2516222543 is about 1360.1381316950.

Adding to 2516222543 its reverse (3452226152), we get a palindrome (5968448695).

The spelling of 2516222543 in words is "two billion, five hundred sixteen million, two hundred twenty-two thousand, five hundred forty-three".