53081161 has 6 divisors (see below), whose sum is σ = 61747530. Its totient is φ = 45498096.

The previous prime is 53081159. The next prime is 53081167. The reversal of 53081161 is 16118035.

53081161 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 only one way, i.e., 48219136 + 4862025 = 6944^2 + 2205^2 .

It is not a de Polignac number, because 53081161 - 2¹ = 53081159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53081167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 541596 + ... + 541693.

It is an arithmetic number, because the mean of its divisors is an integer number (10291255).

Almost surely, 2^53081161 is an apocalyptic number.

It is an amenable number.

53081161 is a deficient number, since it is larger than the sum of its proper divisors (8666369).

53081161 is a wasteful number, since it uses less digits than its factorization.

53081161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083303 (or 1083296 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 53081161 is about 7285.6819172950. The cubic root of 53081161 is about 375.8202159401.

Adding to 53081161 its reverse (16118035), we get a palindrome (69199196).

The spelling of 53081161 in words is "fifty-three million, eighty-one thousand, one hundred sixty-one".