52331640534 has 36 divisors (see below), whose sum is σ = 113556763476. Its totient is φ = 17417515104.

The previous prime is 52331640533. The next prime is 52331640551. The reversal of 52331640534 is 43504613325.

52331640534 is a `hidden beast` number, since 5 + 2 + 3 + 3 + 1 + 640 + 5 + 3 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52331640533) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32523522 + ... + 32525130.

It is an arithmetic number, because the mean of its divisors is an integer number (3154354541).

Almost surely, 2^52331640534 is an apocalyptic number.

52331640534 is an abundant number, since it is smaller than the sum of its proper divisors (61225122942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52331640534 is a wasteful number, since it uses less digits than its factorization.

52331640534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349 (or 2737 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 52331640534 in words is "fifty-two billion, three hundred thirty-one million, six hundred forty thousand, five hundred thirty-four".