13056256 has 18 divisors (see below), whose sum is σ = 26062022. Its totient is φ = 6528000.

The previous prime is 13056229. The next prime is 13056311. The reversal of 13056256 is 65265031.

It can be written as a sum of positive squares in only one way, i.e., 12390400 + 665856 = 3520^2 + 816^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25245 + ... + 25756.

Almost surely, 2^13056256 is an apocalyptic number.

13056256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13056256 is a deficient number, since it is larger than the sum of its proper divisors (13005766).

13056256 is an frugal number, since it uses more digits than its factorization.

13056256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51017 (or 51003 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 13056256 is about 3613.3441574254. The cubic root of 13056256 is about 235.4721516889.

The spelling of 13056256 in words is "thirteen million, fifty-six thousand, two hundred fifty-six".