55166011 has 2 divisors, whose sum is σ = 55166012. Its totient is φ = 55166010.

The previous prime is 55166009. The next prime is 55166017. The reversal of 55166011 is 11066155.

55166011 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 is a cyclic number.

It is not a de Polignac number, because 55166011 - 2¹ = 55166009 is a prime.

Together with 55166009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55166017) 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, 27583005 + 27583006.

It is an arithmetic number, because the mean of its divisors is an integer number (27583006).

Almost surely, 2^55166011 is an apocalyptic number.

55166011 is a deficient number, since it is larger than the sum of its proper divisors (1).

55166011 is an equidigital number, since it uses as much as digits as its factorization.

55166011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 55166011 is about 7427.3825133758. The cubic root of 55166011 is about 380.6774871693.

The spelling of 55166011 in words is "fifty-five million, one hundred sixty-six thousand, eleven".