5581447 has 2 divisors, whose sum is σ = 5581448. Its totient is φ = 5581446.

The previous prime is 5581403. The next prime is 5581451. The reversal of 5581447 is 7441855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5581447 - 2¹⁹ = 5057159 is a prime.

It is a super-2 number, since 2×5581447² = 62305101227618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5581547) 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 as a sum of consecutive naturals, namely, 2790723 + 2790724.

It is an arithmetic number, because the mean of its divisors is an integer number (2790724).

Almost surely, 2^5581447 is an apocalyptic number.

5581447 is a deficient number, since it is larger than the sum of its proper divisors (1).

5581447 is an equidigital number, since it uses as much as digits as its factorization.

5581447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 34.

The square root of 5581447 is about 2362.5086243229. The cubic root of 5581447 is about 177.3844728641.

The spelling of 5581447 in words is "five million, five hundred eighty-one thousand, four hundred forty-seven".