2556276 has 12 divisors (see below), whose sum is σ = 5964672. Its totient is φ = 852088.

The previous prime is 2556259. The next prime is 2556277. The reversal of 2556276 is 6726552.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106500 + ... + 106523.

It is an arithmetic number, because the mean of its divisors is an integer number (497056).

2^2556276 is an apocalyptic number.

It is an amenable number.

2556276 is an abundant number, since it is smaller than the sum of its proper divisors (3408396).

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

2556276 is a wasteful number, since it uses less digits than its factorization.

2556276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213030 (or 213028 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 2556276 is about 1598.8358264687. The cubic root of 2556276 is about 136.7317107267.

The spelling of 2556276 in words is "two million, five hundred fifty-six thousand, two hundred seventy-six".