53885253670849 has 4 divisors (see below), whose sum is σ = 53924500033236. Its totient is φ = 53846007308464.

The previous prime is 53885253670823. The next prime is 53885253670933. The reversal of 53885253670849 is 94807635258835.

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 50930488633600 + 2954765037249 = 7136560^2 + 1718943^2 .

It is a cyclic number.

It is not a de Polignac number, because 53885253670849 - 2¹⁵ = 53885253638081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53885253610849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19623179134 + ... + 19623181879.

It is an arithmetic number, because the mean of its divisors is an integer number (13481125008309).

Almost surely, 2^{53885253670849} is an apocalyptic number.

It is an amenable number.

53885253670849 is a deficient number, since it is larger than the sum of its proper divisors (39246362387).

53885253670849 is a wasteful number, since it uses less digits than its factorization.

53885253670849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39246362386.

The product of its (nonzero) digits is 1741824000, while the sum is 73.

The spelling of 53885253670849 in words is "fifty-three trillion, eight hundred eighty-five billion, two hundred fifty-three million, six hundred seventy thousand, eight hundred forty-nine".