5581056 has 108 divisors (see below), whose sum is σ = 16458288. Its totient is φ = 1677312.

The previous prime is 5581027. The next prime is 5581061. The reversal of 5581056 is 6501855.

It is a happy number.

It is a super-2 number, since 2×5581056² = 62296372150272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129771 + ... + 129813.

Almost surely, 2^5581056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5581056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8229144).

5581056 is an abundant number, since it is smaller than the sum of its proper divisors (10877232).

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

5581056 is a wasteful number, since it uses less digits than its factorization.

5581056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 5581056 is about 2362.4258718529. The cubic root of 5581056 is about 177.3803306319.

The spelling of 5581056 in words is "five million, five hundred eighty-one thousand, fifty-six".