11471056 has 40 divisors (see below), whose sum is σ = 23764104. Its totient is φ = 5345280.

The previous prime is 11471029. The next prime is 11471059. The reversal of 11471056 is 65017411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19600 + 11451456 = 140^2 + 3384^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11471056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11471059) 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, 49116 + ... + 49348.

Almost surely, 2^11471056 is an apocalyptic number.

11471056 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 11471056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11882052).

11471056 is an abundant number, since it is smaller than the sum of its proper divisors (12293048).

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

11471056 is a wasteful number, since it uses less digits than its factorization.

11471056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 11471056 is about 3386.8947429762. The cubic root of 11471056 is about 225.5283451995.

Adding to 11471056 its reverse (65017411), we get a palindrome (76488467).

The spelling of 11471056 in words is "eleven million, four hundred seventy-one thousand, fifty-six".