55055166 has 32 divisors (see below), whose sum is σ = 114337440. Its totient is φ = 17652096.

The previous prime is 55055111. The next prime is 55055167. The reversal of 55055166 is 66155055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68680 + ... + 69476.

It is an arithmetic number, because the mean of its divisors is an integer number (3573045).

Almost surely, 2^55055166 is an apocalyptic number.

55055166 is an abundant number, since it is smaller than the sum of its proper divisors (59282274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55055166 is a wasteful number, since it uses less digits than its factorization.

55055166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 55055166 is about 7419.9168458952. The cubic root of 55055166 is about 380.4223512714.

The spelling of 55055166 in words is "fifty-five million, fifty-five thousand, one hundred sixty-six".