5581043 has 16 divisors (see below), whose sum is σ = 6345696. Its totient is φ = 4872960.

The previous prime is 5581027. The next prime is 5581061. The reversal of 5581043 is 3401855.

It is a cyclic number.

It is not a de Polignac number, because 5581043 - 2⁴ = 5581027 is a prime.

It is a super-2 number, since 2×5581043² = 62296081935698, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (5581343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19580 + ... + 19862.

It is an arithmetic number, because the mean of its divisors is an integer number (396606).

Almost surely, 2^5581043 is an apocalyptic number.

5581043 is a deficient number, since it is larger than the sum of its proper divisors (764653).

5581043 is a wasteful number, since it uses less digits than its factorization.

5581043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 5581043 is about 2362.4231204422. The cubic root of 5581043 is about 177.3801929073.

Adding to 5581043 its reverse (3401855), we get a palindrome (8982898).

The spelling of 5581043 in words is "five million, five hundred eighty-one thousand, forty-three".