2556041 has 2 divisors, whose sum is σ = 2556042. Its totient is φ = 2556040.

The previous prime is 2556023. The next prime is 2556061. The reversal of 2556041 is 1406552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1700416 + 855625 = 1304^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2556041 - 2¹⁴ = 2539657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2555998 and 2556016.

It is not a weakly prime, because it can be changed into another prime (2556011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278020 + 1278021.

It is an arithmetic number, because the mean of its divisors is an integer number (1278021).

2^2556041 is an apocalyptic number.

It is an amenable number.

2556041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556041 is an equidigital number, since it uses as much as digits as its factorization.

2556041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2556041 is about 1598.7623338070. The cubic root of 2556041 is about 136.7275206553.

The spelling of 2556041 in words is "two million, five hundred fifty-six thousand, forty-one".