51752448020 has 96 divisors (see below), whose sum is σ = 135263520000. Its totient is φ = 16194714624.

The previous prime is 51752448019. The next prime is 51752448037. The reversal of 51752448020 is 2084425715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2231 + ... + 321729.

It is an arithmetic number, because the mean of its divisors is an integer number (1408995000).

Almost surely, 2^51752448020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51752448020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67631760000).

51752448020 is an abundant number, since it is smaller than the sum of its proper divisors (83511071980).

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

51752448020 is a wasteful number, since it uses less digits than its factorization.

51752448020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319617 (or 319615 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 38.

The spelling of 51752448020 in words is "fifty-one billion, seven hundred fifty-two million, four hundred forty-eight thousand, twenty".