2556855584 has 12 divisors (see below), whose sum is σ = 5033809494. Its totient is φ = 1278427776.

The previous prime is 2556855563. The next prime is 2556855611. The reversal of 2556855584 is 4855586552.

It can be written as a sum of positive squares in only one way, i.e., 2260051600 + 296803984 = 47540^2 + 17228^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39950837 + ... + 39950900.

Almost surely, 2^2556855584 is an apocalyptic number.

It is an amenable number.

2556855584 is a deficient number, since it is larger than the sum of its proper divisors (2476953910).

2556855584 is an equidigital number, since it uses as much as digits as its factorization.

2556855584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79901747 (or 79901739 counting only the distinct ones).

The product of its digits is 9600000, while the sum is 53.

The square root of 2556855584 is about 50565.3595260629. The cubic root of 2556855584 is about 1367.4204366456.

The spelling of 2556855584 in words is "two billion, five hundred fifty-six million, eight hundred fifty-five thousand, five hundred eighty-four".