2556256244 has 12 divisors (see below), whose sum is σ = 4527345984. Its totient is φ = 1262728824.

The previous prime is 2556256237. The next prime is 2556256321. The reversal of 2556256244 is 4426526552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3849452 + ... + 3850115.

It is an arithmetic number, because the mean of its divisors is an integer number (377278832).

Almost surely, 2^2556256244 is an apocalyptic number.

It is an amenable number.

2556256244 is a deficient number, since it is larger than the sum of its proper divisors (1971089740).

2556256244 is a wasteful number, since it uses less digits than its factorization.

2556256244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699654 (or 7699652 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

The square root of 2556256244 is about 50559.4327895399. The cubic root of 2556256244 is about 1367.3135848529.

The spelling of 2556256244 in words is "two billion, five hundred fifty-six million, two hundred fifty-six thousand, two hundred forty-four".