5581071 has 12 divisors (see below), whose sum is σ = 8082360. Its totient is φ = 3711120.

The previous prime is 5581067. The next prime is 5581091. The reversal of 5581071 is 1701855.

5581071 is a `hidden beast` number, since 558 + 107 + 1 = 666.

It is not a de Polignac number, because 5581071 - 2² = 5581067 is a prime.

It is a super-2 number, since 2×5581071² = 62296707014082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581001) 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 11 ways as a sum of consecutive naturals, for example, 5461 + ... + 6401.

It is an arithmetic number, because the mean of its divisors is an integer number (673530).

Almost surely, 2^5581071 is an apocalyptic number.

5581071 is a deficient number, since it is larger than the sum of its proper divisors (2501289).

5581071 is a wasteful number, since it uses less digits than its factorization.

5581071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 5581071 is about 2362.4290465536. The cubic root of 5581071 is about 177.3804895446.

The spelling of 5581071 in words is "five million, five hundred eighty-one thousand, seventy-one".