53439165 has 48 divisors (see below), whose sum is σ = 100533888. Its totient is φ = 26103168.

The previous prime is 53439163. The next prime is 53439193. The reversal of 53439165 is 56193435.

It is not a de Polignac number, because 53439165 - 2¹ = 53439163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53439161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97422 + ... + 97968.

It is an arithmetic number, because the mean of its divisors is an integer number (2094456).

Almost surely, 2^53439165 is an apocalyptic number.

It is an amenable number.

53439165 is a deficient number, since it is larger than the sum of its proper divisors (47094723).

53439165 is a wasteful number, since it uses less digits than its factorization.

53439165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 735 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 53439165 is about 7310.2096413167. The cubic root of 53439165 is about 376.6632255757.

The spelling of 53439165 in words is "fifty-three million, four hundred thirty-nine thousand, one hundred sixty-five".