55206166 has 16 divisors (see below), whose sum is σ = 84082320. Its totient is φ = 27181440.

The previous prime is 55206163. The next prime is 55206209. The reversal of 55206166 is 66160255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55206161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58450 + ... + 59386.

It is an arithmetic number, because the mean of its divisors is an integer number (5255145).

Almost surely, 2^55206166 is an apocalyptic number.

55206166 is a deficient number, since it is larger than the sum of its proper divisors (28876154).

55206166 is a wasteful number, since it uses less digits than its factorization.

55206166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 55206166 is about 7430.0851946663. The cubic root of 55206166 is about 380.7698290348.

The spelling of 55206166 in words is "fifty-five million, two hundred six thousand, one hundred sixty-six".