5581158 has 32 divisors (see below), whose sum is σ = 12310272. Its totient is φ = 1672800.

The previous prime is 5581141. The next prime is 5581171. The reversal of 5581158 is 8511855.

It is a super-2 number, since 2×5581158² = 62298649241928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6388 + ... + 7208.

It is an arithmetic number, because the mean of its divisors is an integer number (384696).

Almost surely, 2^5581158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5581158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6155136).

5581158 is an abundant number, since it is smaller than the sum of its proper divisors (6729114).

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

5581158 is a wasteful number, since it uses less digits than its factorization.

5581158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940.

The product of its digits is 8000, while the sum is 33.

The square root of 5581158 is about 2362.4474597332. The cubic root of 5581158 is about 177.3814112328.

The spelling of 5581158 in words is "five million, five hundred eighty-one thousand, one hundred fifty-eight".