2542556899 has 2 divisors, whose sum is σ = 2542556900. Its totient is φ = 2542556898.

The previous prime is 2542556893. The next prime is 2542556909. The reversal of 2542556899 is 9986552452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2542556899 - 2¹¹ = 2542554851 is a prime.

It is not a weakly prime, because it can be changed into another prime (2542556893) 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, 1271278449 + 1271278450.

It is an arithmetic number, because the mean of its divisors is an integer number (1271278450).

Almost surely, 2^2542556899 is an apocalyptic number.

2542556899 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542556899 is an equidigital number, since it uses as much as digits as its factorization.

2542556899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776000, while the sum is 55.

The square root of 2542556899 is about 50423.7731531467. The cubic root of 2542556899 is about 1364.8666650925.

The spelling of 2542556899 in words is "two billion, five hundred forty-two million, five hundred fifty-six thousand, eight hundred ninety-nine".