120000055 has 8 divisors (see below), whose sum is σ = 164571552. Its totient is φ = 82285728.

The previous prime is 120000053. The next prime is 120000077. The reversal of 120000055 is 550000021.

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

It is not a de Polignac number, because 120000055 - 2¹ = 120000053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000053) 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, 1714252 + ... + 1714321.

It is an arithmetic number, because the mean of its divisors is an integer number (20571444).

Almost surely, 2^120000055 is an apocalyptic number.

120000055 is a deficient number, since it is larger than the sum of its proper divisors (44571497).

120000055 is an equidigital number, since it uses as much as digits as its factorization.

120000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428585.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 120000055 is about 10954.4536604981. The cubic root of 120000055 is about 493.2424902226.

Adding to 120000055 its reverse (550000021), we get a palindrome (670000076).

The spelling of 120000055 in words is "one hundred twenty million, fifty-five", and thus it is an aban number.