5581731 has 8 divisors (see below), whose sum is σ = 7465744. Its totient is φ = 3709440.

The previous prime is 5581727. The next prime is 5581733. The reversal of 5581731 is 1371855.

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

It is not a de Polignac number, because 5581731 - 2² = 5581727 is a prime.

It is a super-2 number, since 2×5581731² = 62311441912722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5581733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1750 + ... + 3771.

It is an arithmetic number, because the mean of its divisors is an integer number (933218).

Almost surely, 2^5581731 is an apocalyptic number.

5581731 is a deficient number, since it is larger than the sum of its proper divisors (1884013).

5581731 is a wasteful number, since it uses less digits than its factorization.

5581731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861.

The product of its digits is 4200, while the sum is 30.

The square root of 5581731 is about 2362.5687291590. The cubic root of 5581731 is about 177.3874814230.

The spelling of 5581731 in words is "five million, five hundred eighty-one thousand, seven hundred thirty-one".