55305166 has 16 divisors (see below), whose sum is σ = 96145920. Its totient is φ = 23367960.

The previous prime is 55305139. The next prime is 55305167. The reversal of 55305166 is 66150355.

It is a super-2 number, since 2×55305166² = 6117322772575112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55305167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26826 + ... + 28813.

It is an arithmetic number, because the mean of its divisors is an integer number (6009120).

Almost surely, 2^55305166 is an apocalyptic number.

55305166 is a deficient number, since it is larger than the sum of its proper divisors (40840754).

55305166 is a wasteful number, since it uses less digits than its factorization.

55305166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55719.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 55305166 is about 7436.7443145506. The cubic root of 55305166 is about 380.9973018273.

The spelling of 55305166 in words is "fifty-five million, three hundred five thousand, one hundred sixty-six".