52689531589 has 4 divisors (see below), whose sum is σ = 52732335040. Its totient is φ = 52646728140.

The previous prime is 52689531563. The next prime is 52689531611. The reversal of 52689531589 is 98513598625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52689531589 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 (52689531509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21399879 + ... + 21402340.

It is an arithmetic number, because the mean of its divisors is an integer number (13183083760).

Almost surely, 2^52689531589 is an apocalyptic number.

It is an amenable number.

52689531589 is a deficient number, since it is larger than the sum of its proper divisors (42803451).

52689531589 is a wasteful number, since it uses less digits than its factorization.

52689531589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42803450.

The product of its digits is 23328000, while the sum is 61.

The spelling of 52689531589 in words is "fifty-two billion, six hundred eighty-nine million, five hundred thirty-one thousand, five hundred eighty-nine".