11209056 has 48 divisors (see below), whose sum is σ = 29937600. Its totient is φ = 3671168.

The previous prime is 11209049. The next prime is 11209061. The reversal of 11209056 is 65090211.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×11209056² = 251285872822272, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4675 + ... + 6653.

It is an arithmetic number, because the mean of its divisors is an integer number (623700).

Almost surely, 2^11209056 is an apocalyptic number.

11209056 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 11209056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14968800).

11209056 is an abundant number, since it is smaller than the sum of its proper divisors (18728544).

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

11209056 is a wasteful number, since it uses less digits than its factorization.

11209056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2043 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 11209056 is about 3347.9928315335. The cubic root of 11209056 is about 223.7980748316.

Adding to 11209056 its reverse (65090211), we get a palindrome (76299267).

The spelling of 11209056 in words is "eleven million, two hundred nine thousand, fifty-six".