5581271 has 16 divisors (see below), whose sum is σ = 6082560. Its totient is φ = 5110560.

The previous prime is 5581259. The next prime is 5581309. The reversal of 5581271 is 1721855.

5581271 = 269² + 270² + ... + 330².

It is a cyclic number.

It is not a de Polignac number, because 5581271 - 2¹⁰ = 5580247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581201) 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 15 ways as a sum of consecutive naturals, for example, 70610 + ... + 70688.

It is an arithmetic number, because the mean of its divisors is an integer number (380160).

Almost surely, 2^5581271 is an apocalyptic number.

5581271 is a deficient number, since it is larger than the sum of its proper divisors (501289).

5581271 is a wasteful number, since it uses less digits than its factorization.

5581271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206.

The product of its digits is 2800, while the sum is 29.

The square root of 5581271 is about 2362.4713754880. The cubic root of 5581271 is about 177.3826083538.

The spelling of 5581271 in words is "five million, five hundred eighty-one thousand, two hundred seventy-one".