52689589538 has 4 divisors (see below), whose sum is σ = 79034384310. Its totient is φ = 26344794768.

The previous prime is 52689589423. The next prime is 52689589577. The reversal of 52689589538 is 83598598625.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 50439320569 + 2250268969 = 224587^2 + 47437^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13172397383 + ... + 13172397386.

Almost surely, 2^52689589538 is an apocalyptic number.

52689589538 is a deficient number, since it is larger than the sum of its proper divisors (26344794772).

52689589538 is a wasteful number, since it uses less digits than its factorization.

52689589538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26344794771.

The product of its digits is 186624000, while the sum is 68.

The spelling of 52689589538 in words is "fifty-two billion, six hundred eighty-nine million, five hundred eighty-nine thousand, five hundred thirty-eight".