11905056 has 72 divisors (see below), whose sum is σ = 35131824. Its totient is φ = 3965760.

The previous prime is 11905043. The next prime is 11905057. The reversal of 11905056 is 65050911.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11905057) 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, 7011 + ... + 8541.

It is an arithmetic number, because the mean of its divisors is an integer number (487942).

Almost surely, 2^11905056 is an apocalyptic number.

11905056 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 11905056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17565912).

11905056 is an abundant number, since it is smaller than the sum of its proper divisors (23226768).

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

11905056 is an equidigital number, since it uses as much as digits as its factorization.

11905056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 11905056 is about 3450.3704148975. The cubic root of 11905056 is about 228.3374504500.

Adding to 11905056 its reverse (65050911), we get a palindrome (76955967).

The spelling of 11905056 in words is "eleven million, nine hundred five thousand, fifty-six".