4005556043 has 2 divisors, whose sum is σ = 4005556044. Its totient is φ = 4005556042.

The previous prime is 4005555989. The next prime is 4005556057. The reversal of 4005556043 is 3406555004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4005556043 - 2¹⁰ = 4005555019 is a prime.

It is a super-2 number, since 2×4005556043² = 32088958427227635698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4005556343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2002778021 + 2002778022.

It is an arithmetic number, because the mean of its divisors is an integer number (2002778022).

Almost surely, 2^4005556043 is an apocalyptic number.

4005556043 is a deficient number, since it is larger than the sum of its proper divisors (1).

4005556043 is an equidigital number, since it uses as much as digits as its factorization.

4005556043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 4005556043 is about 63289.4623377383. The cubic root of 4005556043 is about 1588.1356843110.

The spelling of 4005556043 in words is "four billion, five million, five hundred fifty-six thousand, forty-three".