2556967 has 6 divisors (see below), whose sum is σ = 2974488. Its totient is φ = 2191644.

The previous prime is 2556943. The next prime is 2556977. The reversal of 2556967 is 7696552.

It is not a de Polignac number, because 2556967 - 2⁷ = 2556839 is a prime.

It is a Duffinian number.

2556967 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556907) 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, 26043 + ... + 26140.

It is an arithmetic number, because the mean of its divisors is an integer number (495748).

2^2556967 is an apocalyptic number.

2556967 is a deficient number, since it is larger than the sum of its proper divisors (417521).

2556967 is an equidigital number, since it uses as much as digits as its factorization.

2556967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52197 (or 52190 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 2556967 is about 1599.0519065997. The cubic root of 2556967 is about 136.7440298320.

The spelling of 2556967 in words is "two million, five hundred fifty-six thousand, nine hundred sixty-seven".