53213445444163 has 16 divisors (see below), whose sum is σ = 53537368314240. Its totient is φ = 52890797952000.

The previous prime is 53213445444149. The next prime is 53213445444209. The reversal of 53213445444163 is 36144454431235.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53213445444163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53213445445163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131559853 + ... + 131963713.

It is an arithmetic number, because the mean of its divisors is an integer number (3346085519640).

Almost surely, 2^{53213445444163} is an apocalyptic number.

53213445444163 is a deficient number, since it is larger than the sum of its proper divisors (323922870077).

53213445444163 is a wasteful number, since it uses less digits than its factorization.

53213445444163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405438.

The product of its digits is 8294400, while the sum is 49.

Adding to 53213445444163 its reverse (36144454431235), we get a palindrome (89357899875398).

The spelling of 53213445444163 in words is "fifty-three trillion, two hundred thirteen billion, four hundred forty-five million, four hundred forty-four thousand, one hundred sixty-three".