2556428882 has 12 divisors (see below), whose sum is σ = 4460707710. Its totient is φ = 1095612336.

The previous prime is 2556428881. The next prime is 2556428893. The reversal of 2556428882 is 2888246552.

It can be written as a sum of positive squares in only one way, i.e., 2556414721 + 14161 = 50561^2 + 119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2556428882.

It is not an unprimeable number, because it can be changed into a prime (2556428881) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13042907 + ... + 13043102.

Almost surely, 2^2556428882 is an apocalyptic number.

2556428882 is a deficient number, since it is larger than the sum of its proper divisors (1904278828).

2556428882 is a wasteful number, since it uses less digits than its factorization.

2556428882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26086025 (or 26086018 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 50.

The square root of 2556428882 is about 50561.1400385711. The cubic root of 2556428882 is about 1367.3443648877.

The spelling of 2556428882 in words is "two billion, five hundred fifty-six million, four hundred twenty-eight thousand, eight hundred eighty-two".