2568256 has 14 divisors (see below), whose sum is σ = 5096510. Its totient is φ = 1284096.

The previous prime is 2568253. The next prime is 2568259. The reversal of 2568256 is 6528652.

It is an interprime number because it is at equal distance from previous prime (2568253) and next prime (2568259).

It can be written as a sum of positive squares in only one way, i.e., 1401856 + 1166400 = 1184^2 + 1080^2 .

It is a d-powerful number, because it can be written as 2¹⁰ + 5² + 6 + 8⁵ + 2²¹ + 5⁸ + 6⁶ .

It is not an unprimeable number, because it can be changed into a prime (2568253) 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, 20001 + ... + 20128.

2^2568256 is an apocalyptic number.

It is an amenable number.

2568256 is a deficient number, since it is larger than the sum of its proper divisors (2528254).

2568256 is an equidigital number, since it uses as much as digits as its factorization.

2568256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40141 (or 40131 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2568256 is about 1602.5779232225. The cubic root of 2568256 is about 136.9449758609.

The spelling of 2568256 in words is "two million, five hundred sixty-eight thousand, two hundred fifty-six".