2560000256 has 36 divisors (see below), whose sum is σ = 5574552144. Its totient is φ = 1163635200.

The previous prime is 2560000229. The next prime is 2560000279. The reversal of 2560000256 is 6520000652.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451730 + ... + 457361.

Almost surely, 2^2560000256 is an apocalyptic number.

It is an amenable number.

2560000256 is an abundant number, since it is smaller than the sum of its proper divisors (3014551888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2560000256 is an equidigital number, since it uses as much as digits as its factorization.

2560000256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909118 (or 909104 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2560000256 is about 50596.4450925161. The cubic root of 2560000256 is about 1367.9808029407.

It can be divided in two parts, 2560000 and 256, that multiplied together give a 4-th power (655360000 = 160⁴).

The spelling of 2560000256 in words is "two billion, five hundred sixty million, two hundred fifty-six", and thus it is an aban number.