53644784855775 has 24 divisors (see below), whose sum is σ = 88886786972304. Its totient is φ = 28547946758400.

The previous prime is 53644784855743. The next prime is 53644784855777. The reversal of 53644784855775 is 57755848744635.

53644784855775 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 53644784855775 - 2⁵ = 53644784855743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53644784855775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644784855777) 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 23 ways as a sum of consecutive naturals, for example, 782530056 + ... + 782598605.

It is an arithmetic number, because the mean of its divisors is an integer number (3703616123846).

Almost surely, 2^{53644784855775} is an apocalyptic number.

53644784855775 is a deficient number, since it is larger than the sum of its proper divisors (35242002116529).

53644784855775 is a wasteful number, since it uses less digits than its factorization.

53644784855775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565129131 (or 1565129126 counting only the distinct ones).

The product of its digits is 15805440000, while the sum is 78.

The spelling of 53644784855775 in words is "fifty-three trillion, six hundred forty-four billion, seven hundred eighty-four million, eight hundred fifty-five thousand, seven hundred seventy-five".