55018500201685 has 16 divisors (see below), whose sum is σ = 69922499823792. Its totient is φ = 41415833088000.

The previous prime is 55018500201653. The next prime is 55018500201739. The reversal of 55018500201685 is 58610200581055.

55018500201685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 8940375082116 + 46078125119569 = 2990046^2 + 6788087^2 .

It is not a de Polignac number, because 55018500201685 - 2⁵ = 55018500201653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76681296 + ... + 77395465.

It is an arithmetic number, because the mean of its divisors is an integer number (4370156238987).

Almost surely, 2^{55018500201685} is an apocalyptic number.

It is an amenable number.

55018500201685 is a deficient number, since it is larger than the sum of its proper divisors (14903999622107).

55018500201685 is a wasteful number, since it uses less digits than its factorization.

55018500201685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154080984.

The product of its (nonzero) digits is 480000, while the sum is 46.

The spelling of 55018500201685 in words is "fifty-five trillion, eighteen billion, five hundred million, two hundred one thousand, six hundred eighty-five".