52135871 has 4 divisors (see below), whose sum is σ = 54402672. Its totient is φ = 49869072.

The previous prime is 52135859. The next prime is 52135891. The reversal of 52135871 is 17853125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52135871 - 2⁶ = 52135807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52135841) 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 3 ways as a sum of consecutive naturals, for example, 1133366 + ... + 1133411.

It is an arithmetic number, because the mean of its divisors is an integer number (13600668).

Almost surely, 2^52135871 is an apocalyptic number.

52135871 is a deficient number, since it is larger than the sum of its proper divisors (2266801).

52135871 is a wasteful number, since it uses less digits than its factorization.

52135871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266800.

The product of its digits is 8400, while the sum is 32.

The square root of 52135871 is about 7220.5173637351. The cubic root of 52135871 is about 373.5759227078.

Adding to 52135871 its reverse (17853125), we get a palindrome (69988996).

The spelling of 52135871 in words is "fifty-two million, one hundred thirty-five thousand, eight hundred seventy-one".