55229 has 2 divisors, whose sum is σ = 55230. Its totient is φ = 55228.
The previous prime is 55219. The next prime is 55243. The reversal of 55229 is 92255.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 55225 + 4 = 235^2 + 2^2 .
It is a cyclic number.
It is not a de Polignac number, because 55229 - 24 = 55213 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a plaindrome in base 15.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (55219) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27614 + 27615.
It is an arithmetic number, because the mean of its divisors is an integer number (27615).
255229 is an apocalyptic number.
It is an amenable number.
55229 is a deficient number, since it is larger than the sum of its proper divisors (1).
55229 is an equidigital number, since it uses as much as digits as its factorization.
55229 is an evil number, because the sum of its binary digits is even.
The product of its digits is 900, while the sum is 23.
The square root of 55229 is about 235.0085104842. The cubic root of 55229 is about 38.0822318943.
The spelling of 55229 in words is "fifty-five thousand, two hundred twenty-nine".
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