65556229 has 2 divisors, whose sum is σ = 65556230. Its totient is φ = 65556228.

The previous prime is 65556221. The next prime is 65556241. The reversal of 65556229 is 92265556.

It is a happy number.

65556229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61984129 + 3572100 = 7873^2 + 1890^2 .

It is a cyclic number.

It is not a de Polignac number, because 65556229 - 2³ = 65556221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65556191 and 65556200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65556221) 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 as a sum of consecutive naturals, namely, 32778114 + 32778115.

It is an arithmetic number, because the mean of its divisors is an integer number (32778115).

Almost surely, 2^65556229 is an apocalyptic number.

It is an amenable number.

65556229 is a deficient number, since it is larger than the sum of its proper divisors (1).

65556229 is an equidigital number, since it uses as much as digits as its factorization.

65556229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 40.

The square root of 65556229 is about 8096.6801221241. The cubic root of 65556229 is about 403.2162143534.

The spelling of 65556229 in words is "sixty-five million, five hundred fifty-six thousand, two hundred twenty-nine".