2570256 has 60 divisors (see below), whose sum is σ = 7752108. Its totient is φ = 790272.

The previous prime is 2570251. The next prime is 2570311. The reversal of 2570256 is 6520752.

It can be written as a sum of positive squares in 2 ways, for example, as 1648656 + 921600 = 1284^2 + 960^2 .

It is not an unprimeable number, because it can be changed into a prime (2570251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1186 + ... + 2558.

2^2570256 is an apocalyptic number.

2570256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2570256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3876054).

2570256 is an abundant number, since it is smaller than the sum of its proper divisors (5181852).

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

2570256 is a wasteful number, since it uses less digits than its factorization.

2570256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2570256 is about 1603.2017964062. The cubic root of 2570256 is about 136.9805147488.

The spelling of 2570256 in words is "two million, five hundred seventy thousand, two hundred fifty-six".