11611056 has 40 divisors (see below), whose sum is σ = 30426624. Its totient is φ = 3814720.

The previous prime is 11611043. The next prime is 11611057. The reversal of 11611056 is 65011611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11611057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1705 + ... + 5111.

Almost surely, 2^11611056 is an apocalyptic number.

11611056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is a pronic number, being equal to 3407×3408.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11611056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15213312).

11611056 is an abundant number, since it is smaller than the sum of its proper divisors (18815568).

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

11611056 is a wasteful number, since it uses less digits than its factorization.

11611056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3483 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 11611056 is about 3407.4999633162. The cubic root of 11611056 is about 226.4421344414.

Adding to 11611056 its reverse (65011611), we get a palindrome (76622667).

The spelling of 11611056 in words is "eleven million, six hundred eleven thousand, fifty-six".