55000085 has 16 divisors (see below), whose sum is σ = 75668736. Its totient is φ = 37594368.

The previous prime is 55000069. The next prime is 55000091. The reversal of 55000085 is 58000055.

It is a happy number.

55000085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55000085 - 2⁴ = 55000069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55000085.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9464 + ... + 14126.

It is an arithmetic number, because the mean of its divisors is an integer number (4729296).

Almost surely, 2^55000085 is an apocalyptic number.

It is an amenable number.

55000085 is a deficient number, since it is larger than the sum of its proper divisors (20668651).

55000085 is a wasteful number, since it uses less digits than its factorization.

55000085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 55000085 is about 7416.2042177923. The cubic root of 55000085 is about 380.2954419857.

The spelling of 55000085 in words is "fifty-five million, eighty-five", and thus it is an aban number and an uban number.