6538256 has 40 divisors (see below), whose sum is σ = 13421760. Its totient is φ = 3079296.

The previous prime is 6538219. The next prime is 6538267. The reversal of 6538256 is 6528356.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40031 + ... + 40193.

It is an arithmetic number, because the mean of its divisors is an integer number (335544).

Almost surely, 2^6538256 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 6538256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6710880).

6538256 is an abundant number, since it is smaller than the sum of its proper divisors (6883504).

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

6538256 is a wasteful number, since it uses less digits than its factorization.

6538256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 297 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 6538256 is about 2557.0013687912. The cubic root of 6538256 is about 186.9909725212.

The spelling of 6538256 in words is "six million, five hundred thirty-eight thousand, two hundred fifty-six".