2556126 has 12 divisors (see below), whose sum is σ = 5538312. Its totient is φ = 852036.

The previous prime is 2556121. The next prime is 2556133. The reversal of 2556126 is 6216552.

It is a self number, because there is not a number n which added to its sum of digits gives 2556126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556121) 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, 70986 + ... + 71021.

It is an arithmetic number, because the mean of its divisors is an integer number (461526).

2^2556126 is an apocalyptic number.

2556126 is an abundant number, since it is smaller than the sum of its proper divisors (2982186).

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

2556126 is a wasteful number, since it uses less digits than its factorization.

2556126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142015 (or 142012 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2556126 is about 1598.7889166491. The cubic root of 2556126 is about 136.7290362427.

The spelling of 2556126 in words is "two million, five hundred fifty-six thousand, one hundred twenty-six".