52751761920 has 960 divisors, whose sum is σ = 222958479744. Its totient is φ = 11784683520.

The previous prime is 52751761913. The next prime is 52751761921. The reversal of 52751761920 is 2916715725.

52751761920 is a `hidden beast` number, since 5 + 2 + 7 + 5 + 1 + 7 + 619 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (52751761921) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 88957144 + ... + 88957736.

Almost surely, 2^52751761920 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 52751761920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111479239872).

52751761920 is an abundant number, since it is smaller than the sum of its proper divisors (170206717824).

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

52751761920 is a wasteful number, since it uses less digits than its factorization.

52751761920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 52751761920 in words is "fifty-two billion, seven hundred fifty-one million, seven hundred sixty-one thousand, nine hundred twenty".