5581229 has 2 divisors, whose sum is σ = 5581230. Its totient is φ = 5581228.

The previous prime is 5581217. The next prime is 5581259. The reversal of 5581229 is 9221855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5396329 + 184900 = 2323^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 5581229 - 2¹⁶ = 5515693 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5581195 and 5581204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5581259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2790614 + 2790615.

It is an arithmetic number, because the mean of its divisors is an integer number (2790615).

Almost surely, 2^5581229 is an apocalyptic number.

It is an amenable number.

5581229 is a deficient number, since it is larger than the sum of its proper divisors (1).

5581229 is an equidigital number, since it uses as much as digits as its factorization.

5581229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 5581229 is about 2362.4624864747. The cubic root of 5581229 is about 177.3821634081.

The spelling of 5581229 in words is "five million, five hundred eighty-one thousand, two hundred twenty-nine".