52287964640 has 24 divisors (see below), whose sum is σ = 123530316840. Its totient is φ = 20915185792.

The previous prime is 52287964633. The next prime is 52287964643. The reversal of 52287964640 is 4646978225.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52287964643) 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, 163399730 + ... + 163400049.

It is an arithmetic number, because the mean of its divisors is an integer number (5147096535).

Almost surely, 2^52287964640 is an apocalyptic number.

It is an amenable number.

52287964640 is an abundant number, since it is smaller than the sum of its proper divisors (71242352200).

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

52287964640 is a wasteful number, since it uses less digits than its factorization.

52287964640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326799794 (or 326799786 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 52287964640 in words is "fifty-two billion, two hundred eighty-seven million, nine hundred sixty-four thousand, six hundred forty".