52505134231 has 4 divisors (see below), whose sum is σ = 57278328264. Its totient is φ = 47731940200.

The previous prime is 52505134193. The next prime is 52505134237. The reversal of 52505134231 is 13243150525.

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 52505134231 - 2⁹ = 52505133719 is a prime.

It is a super-2 number, since 2×52505134231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52505134193 and 52505134202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505134237) 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, 2386597000 + ... + 2386597021.

It is an arithmetic number, because the mean of its divisors is an integer number (14319582066).

Almost surely, 2^52505134231 is an apocalyptic number.

52505134231 is a deficient number, since it is larger than the sum of its proper divisors (4773194033).

52505134231 is a wasteful number, since it uses less digits than its factorization.

52505134231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773194032.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 52505134231 its reverse (13243150525), we get a palindrome (65748284756).

The spelling of 52505134231 in words is "fifty-two billion, five hundred five million, one hundred thirty-four thousand, two hundred thirty-one".