2528256 has 44 divisors (see below), whose sum is σ = 6746912. Its totient is φ = 841728.

The previous prime is 2528243. The next prime is 2528261. The reversal of 2528256 is 6528252.

It is a d-powerful number, because it can be written as 2 + 5² + 2¹² + 8² + 2¹⁹ + 5⁹ + 6⁶ .

It is a congruent 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, 2661 + ... + 3483.

2^2528256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2528256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3373456).

2528256 is an abundant number, since it is smaller than the sum of its proper divisors (4218656).

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

2528256 is an equidigital number, since it uses as much as digits as its factorization.

2528256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 828 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 2528256 is about 1590.0490558470. The cubic root of 2528256 is about 136.2302903342.

The spelling of 2528256 in words is "two million, five hundred twenty-eight thousand, two hundred fifty-six".