13261056 has 72 divisors (see below), whose sum is σ = 36497664. Its totient is φ = 4270080.

The previous prime is 13261051. The next prime is 13261063. The reversal of 13261056 is 65016231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13261051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23530 + ... + 24086.

It is an arithmetic number, because the mean of its divisors is an integer number (506912).

Almost surely, 2^13261056 is an apocalyptic number.

13261056 is a gapful number since it is divisible by the number (16) 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 13261056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18248832).

13261056 is an abundant number, since it is smaller than the sum of its proper divisors (23236608).

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

13261056 is an equidigital number, since it uses as much as digits as its factorization.

13261056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 13261056 is about 3641.5732863695. The cubic root of 13261056 is about 236.6969724686.

Adding to 13261056 its reverse (65016231), we get a palindrome (78277287).

The spelling of 13261056 in words is "thirteen million, two hundred sixty-one thousand, fifty-six".