2556712 has 8 divisors (see below), whose sum is σ = 4793850. Its totient is φ = 1278352.

The previous prime is 2556689. The next prime is 2556713. The reversal of 2556712 is 2176552.

It can be written as a sum of positive squares in only one way, i.e., 2540836 + 15876 = 1594^2 + 126^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2556713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159787 + ... + 159802.

2^2556712 is an apocalyptic number.

It is an amenable number.

2556712 is a deficient number, since it is larger than the sum of its proper divisors (2237138).

2556712 is a wasteful number, since it uses less digits than its factorization.

2556712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319595 (or 319591 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 2556712 is about 1598.9721698641. The cubic root of 2556712 is about 136.7394839662.

The spelling of 2556712 in words is "two million, five hundred fifty-six thousand, seven hundred twelve".