11521056 has 24 divisors (see below), whose sum is σ = 30243024. Its totient is φ = 3840320.

The previous prime is 11521051. The next prime is 11521187. The reversal of 11521056 is 65012511.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (11521051) 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 3 ways as a sum of consecutive naturals, for example, 59910 + ... + 60101.

It is an arithmetic number, because the mean of its divisors is an integer number (1260126).

Almost surely, 2^11521056 is an apocalyptic number.

11521056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11521056 is an abundant number, since it is smaller than the sum of its proper divisors (18721968).

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

11521056 is a wasteful number, since it uses less digits than its factorization.

11521056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120024 (or 120016 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 11521056 is about 3394.2681096225. The cubic root of 11521056 is about 225.8555476515.

Adding to 11521056 its reverse (65012511), we get a palindrome (76533567).

The spelling of 11521056 in words is "eleven million, five hundred twenty-one thousand, fifty-six".