52439969620 has 48 divisors (see below), whose sum is σ = 111264048000. Its totient is φ = 20759011200.

The previous prime is 52439969597. The next prime is 52439969623. The reversal of 52439969620 is 2696993425.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52439969623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6094081 + ... + 6102679.

It is an arithmetic number, because the mean of its divisors is an integer number (2318001000).

Almost surely, 2^52439969620 is an apocalyptic number.

It is an amenable number.

52439969620 is an abundant number, since it is smaller than the sum of its proper divisors (58824078380).

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

52439969620 is a wasteful number, since it uses less digits than its factorization.

52439969620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11728 (or 11726 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 55.

The spelling of 52439969620 in words is "fifty-two billion, four hundred thirty-nine million, nine hundred sixty-nine thousand, six hundred twenty".