55068139 has 8 divisors (see below), whose sum is σ = 63127808. Its totient is φ = 47056680.

The previous prime is 55068133. The next prime is 55068199. The reversal of 55068139 is 93186055.

55068139 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 cyclic number.

It is not a de Polignac number, because 55068139 - 2⁹ = 55067627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55068098 and 55068107.

It is not an unprimeable number, because it can be changed into a prime (55068133) 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 7 ways as a sum of consecutive naturals, for example, 9567 + ... + 14200.

It is an arithmetic number, because the mean of its divisors is an integer number (7890976).

Almost surely, 2^55068139 is an apocalyptic number.

55068139 is a deficient number, since it is larger than the sum of its proper divisors (8059669).

55068139 is a wasteful number, since it uses less digits than its factorization.

55068139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24105.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55068139 is about 7420.7909955745. The cubic root of 55068139 is about 380.4522293733.

The spelling of 55068139 in words is "fifty-five million, sixty-eight thousand, one hundred thirty-nine".