2556613056 has 56 divisors (see below), whose sum is σ = 6929378064. Its totient is φ = 831416320.

The previous prime is 2556613019. The next prime is 2556613079. The reversal of 2556613056 is 6503166552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154515 + ... + 170258.

It is an arithmetic number, because the mean of its divisors is an integer number (123738894).

Almost surely, 2^2556613056 is an apocalyptic number.

It is an amenable number.

2556613056 is an abundant number, since it is smaller than the sum of its proper divisors (4372765008).

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

2556613056 is a wasteful number, since it uses less digits than its factorization.

2556613056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324829 (or 324819 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 2556613056 is about 50562.9613056830. The cubic root of 2556613056 is about 1367.3772001755.

The spelling of 2556613056 in words is "two billion, five hundred fifty-six million, six hundred thirteen thousand, fifty-six".