120170055 has 32 divisors (see below), whose sum is σ = 207567360. Its totient is φ = 59185280.

The previous prime is 120170051. The next prime is 120170069. The reversal of 120170055 is 550071021.

It is not a de Polignac number, because 120170055 - 2² = 120170051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120170051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4000 + ... + 16010.

It is an arithmetic number, because the mean of its divisors is an integer number (6486480).

Almost surely, 2^120170055 is an apocalyptic number.

120170055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120170055 is a deficient number, since it is larger than the sum of its proper divisors (87397305).

120170055 is a wasteful number, since it uses less digits than its factorization.

120170055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12071.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 120170055 is about 10962.2103154428. The cubic root of 120170055 is about 493.4753002772.

The spelling of 120170055 in words is "one hundred twenty million, one hundred seventy thousand, fifty-five".