5115545443 has 2 divisors, whose sum is σ = 5115545444. Its totient is φ = 5115545442.

The previous prime is 5115545431. The next prime is 5115545447. The reversal of 5115545443 is 3445455115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5115545443 - 2⁵ = 5115545411 is a prime.

It is not a weakly prime, because it can be changed into another prime (5115545447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2557772721 + 2557772722.

It is an arithmetic number, because the mean of its divisors is an integer number (2557772722).

Almost surely, 2^5115545443 is an apocalyptic number.

5115545443 is a deficient number, since it is larger than the sum of its proper divisors (1).

5115545443 is an equidigital number, since it uses as much as digits as its factorization.

5115545443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120000, while the sum is 37.

The square root of 5115545443 is about 71523.0413433321. The cubic root of 5115545443 is about 1723.0477605297.

The spelling of 5115545443 in words is "five billion, one hundred fifteen million, five hundred forty-five thousand, four hundred forty-three".