42555166 has 8 divisors (see below), whose sum is σ = 64914840. Its totient is φ = 20916888.

The previous prime is 42555127. The next prime is 42555169. The reversal of 42555166 is 66155524.

42555166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555169) 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 in 3 ways as a sum of consecutive naturals, for example, 180201 + ... + 180436.

It is an arithmetic number, because the mean of its divisors is an integer number (8114355).

Almost surely, 2^42555166 is an apocalyptic number.

42555166 is a deficient number, since it is larger than the sum of its proper divisors (22359674).

42555166 is a wasteful number, since it uses less digits than its factorization.

42555166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360698.

The product of its digits is 36000, while the sum is 34.

The square root of 42555166 is about 6523.4320721534. The cubic root of 42555166 is about 349.1275303419.

The spelling of 42555166 in words is "forty-two million, five hundred fifty-five thousand, one hundred sixty-six".