53505503672185 has 4 divisors (see below), whose sum is σ = 64206604406628. Its totient is φ = 42804402937744.

The previous prime is 53505503672183. The next prime is 53505503672197. The reversal of 53505503672185 is 58127630550535.

53505503672185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15909671848249 + 37595831823936 = 3988693^2 + 6131544^2 .

It is a cyclic number.

It is not a de Polignac number, because 53505503672185 - 2¹ = 53505503672183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53505503672183) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5350550367214 + ... + 5350550367223.

It is an arithmetic number, because the mean of its divisors is an integer number (16051651101657).

Almost surely, 2^{53505503672185} is an apocalyptic number.

It is an amenable number.

53505503672185 is a deficient number, since it is larger than the sum of its proper divisors (10701100734443).

53505503672185 is a wasteful number, since it uses less digits than its factorization.

53505503672185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10701100734442.

The product of its (nonzero) digits is 18900000, while the sum is 55.

The spelling of 53505503672185 in words is "fifty-three trillion, five hundred five billion, five hundred three million, six hundred seventy-two thousand, one hundred eighty-five".