5581168 has 40 divisors (see below), whose sum is σ = 11651040. Its totient is φ = 2589440.

The previous prime is 5581141. The next prime is 5581171. The reversal of 5581168 is 8611855.

It is a super-2 number, since 2×5581168² = 62298872488448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 78573 + ... + 78643.

It is an arithmetic number, because the mean of its divisors is an integer number (291276).

Almost surely, 2^5581168 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 5581168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5825520).

5581168 is an abundant number, since it is smaller than the sum of its proper divisors (6069872).

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

5581168 is an equidigital number, since it uses as much as digits as its factorization.

5581168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 90 counting only the distinct ones).

The product of its digits is 9600, while the sum is 34.

The square root of 5581168 is about 2362.4495761815. The cubic root of 5581168 is about 177.3815171734.

The spelling of 5581168 in words is "five million, five hundred eighty-one thousand, one hundred sixty-eight".