5581579 has 4 divisors (see below), whose sum is σ = 5700384. Its totient is φ = 5462776.

The previous prime is 5581553. The next prime is 5581591. The reversal of 5581579 is 9751855.

5581579 = 962² + 963² + ... + 967².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5581579 - 2⁵ = 5581547 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5581549) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 59332 + ... + 59425.

It is an arithmetic number, because the mean of its divisors is an integer number (1425096).

Almost surely, 2^5581579 is an apocalyptic number.

5581579 is a deficient number, since it is larger than the sum of its proper divisors (118805).

5581579 is a wasteful number, since it uses less digits than its factorization.

5581579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118804.

The product of its digits is 63000, while the sum is 40.

The square root of 5581579 is about 2362.5365605637. The cubic root of 5581579 is about 177.3858712210.

The spelling of 5581579 in words is "five million, five hundred eighty-one thousand, five hundred seventy-nine".