5581543 has 8 divisors (see below), whose sum is σ = 6299280. Its totient is φ = 4898880.

The previous prime is 5581531. The next prime is 5581547. The reversal of 5581543 is 3451855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5581543 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8430 + ... + 9067.

It is an arithmetic number, because the mean of its divisors is an integer number (787410).

Almost surely, 2^5581543 is an apocalyptic number.

5581543 is a deficient number, since it is larger than the sum of its proper divisors (717737).

5581543 is a wasteful number, since it uses less digits than its factorization.

5581543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17537.

The product of its digits is 12000, while the sum is 31.

The square root of 5581543 is about 2362.5289416217. The cubic root of 5581543 is about 177.3854898531.

The spelling of 5581543 in words is "five million, five hundred eighty-one thousand, five hundred forty-three".