2556488879 has 8 divisors (see below), whose sum is σ = 2922699168. Its totient is φ = 2190528000.

The previous prime is 2556488861. The next prime is 2556488887. The reversal of 2556488879 is 9788846552.

2556488879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2556488879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556488819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39842 + ... + 81855.

It is an arithmetic number, because the mean of its divisors is an integer number (365337396).

Almost surely, 2^2556488879 is an apocalyptic number.

2556488879 is a deficient number, since it is larger than the sum of its proper divisors (366210289).

2556488879 is a wasteful number, since it uses less digits than its factorization.

2556488879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124705.

The product of its digits is 38707200, while the sum is 62.

The square root of 2556488879 is about 50561.7333464746. The cubic root of 2556488879 is about 1367.3550615694.

The spelling of 2556488879 in words is "two billion, five hundred fifty-six million, four hundred eighty-eight thousand, eight hundred seventy-nine".