4256443555 has 96 divisors (see below), whose sum is σ = 6921149760. Its totient is φ = 2482099200.

The previous prime is 4256443531. The next prime is 4256443589. The reversal of 4256443555 is 5553446524.

It is not a de Polignac number, because 4256443555 - 2⁷ = 4256443427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2238105 + ... + 2240005.

It is an arithmetic number, because the mean of its divisors is an integer number (72095310).

Almost surely, 2^4256443555 is an apocalyptic number.

4256443555 is a deficient number, since it is larger than the sum of its proper divisors (2664706205).

4256443555 is a wasteful number, since it uses less digits than its factorization.

4256443555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1982 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 43.

The square root of 4256443555 is about 65241.4251453783. The cubic root of 4256443555 is about 1620.6240997034.

The spelling of 4256443555 in words is "four billion, two hundred fifty-six million, four hundred forty-three thousand, five hundred fifty-five".