52911955816720 has 640 divisors, whose sum is σ = 168821706719232. Its totient is φ = 14890621132800.

The previous prime is 52911955816717. The next prime is 52911955816721. The reversal of 52911955816720 is 2761855911925.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52911955816721) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 722044722 + ... + 722117998.

Almost surely, 2^{52911955816720} 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 52911955816720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84410853359616).

52911955816720 is an abundant number, since it is smaller than the sum of its proper divisors (115909750902512).

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

52911955816720 is a wasteful number, since it uses less digits than its factorization.

52911955816720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73519 (or 73513 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 61.

The spelling of 52911955816720 in words is "fifty-two trillion, nine hundred eleven billion, nine hundred fifty-five million, eight hundred sixteen thousand, seven hundred twenty".