55221041 has 2 divisors, whose sum is σ = 55221042. Its totient is φ = 55221040.

The previous prime is 55221037. The next prime is 55221059. The reversal of 55221041 is 14012255.

55221041 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., 54760000 + 461041 = 7400^2 + 679^2 .

It is a cyclic number.

It is not a de Polignac number, because 55221041 - 2² = 55221037 is a prime.

It is not a weakly prime, because it can be changed into another prime (55221241) 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, 27610520 + 27610521.

It is an arithmetic number, because the mean of its divisors is an integer number (27610521).

Almost surely, 2^55221041 is an apocalyptic number.

It is an amenable number.

55221041 is a deficient number, since it is larger than the sum of its proper divisors (1).

55221041 is an equidigital number, since it uses as much as digits as its factorization.

55221041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 55221041 is about 7431.0861251906. The cubic root of 55221041 is about 380.8040247475.

Adding to 55221041 its reverse (14012255), we get a palindrome (69233296).

The spelling of 55221041 in words is "fifty-five million, two hundred twenty-one thousand, forty-one".