2556046544 has 20 divisors (see below), whose sum is σ = 5123111460. Its totient is φ = 1233953280.

The previous prime is 2556046541. The next prime is 2556046589. The reversal of 2556046544 is 4456406552.

It can be written as a sum of positive squares in 2 ways, for example, as 419758144 + 2136288400 = 20488^2 + 46220^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556046541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2753897 + ... + 2754824.

It is an arithmetic number, because the mean of its divisors is an integer number (256155573).

Almost surely, 2^2556046544 is an apocalyptic number.

It is an amenable number.

2556046544 is an abundant number, since it is smaller than the sum of its proper divisors (2567064916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2556046544 is a wasteful number, since it uses less digits than its factorization.

2556046544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508758 (or 5508752 counting only the distinct ones).

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

The square root of 2556046544 is about 50557.3589500085. The cubic root of 2556046544 is about 1367.2761950828.

The spelling of 2556046544 in words is "two billion, five hundred fifty-six million, forty-six thousand, five hundred forty-four".