2556741 has 8 divisors (see below), whose sum is σ = 3718944. Its totient is φ = 1549520.

The previous prime is 2556739. The next prime is 2556761. The reversal of 2556741 is 1476552.

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

It is a cyclic number.

It is not a de Polignac number, because 2556741 - 2¹ = 2556739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2556699 and 2556708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556761) 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, 38706 + ... + 38771.

It is an arithmetic number, because the mean of its divisors is an integer number (464868).

2^2556741 is an apocalyptic number.

It is an amenable number.

2556741 is a deficient number, since it is larger than the sum of its proper divisors (1162203).

2556741 is a wasteful number, since it uses less digits than its factorization.

2556741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77491.

The product of its digits is 8400, while the sum is 30.

The square root of 2556741 is about 1598.9812381639. The cubic root of 2556741 is about 136.7400009623.

It can be divided in two parts, 255 and 6741, that added together give a palindrome (6996).

The spelling of 2556741 in words is "two million, five hundred fifty-six thousand, seven hundred forty-one".