52091211392 has 128 divisors (see below), whose sum is σ = 115864819200. Its totient is φ = 23127690240.

The previous prime is 52091211379. The next prime is 52091211397. The reversal of 52091211392 is 29311219025.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (52091211397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13538813 + ... + 13542659.

It is an arithmetic number, because the mean of its divisors is an integer number (905193900).

Almost surely, 2^52091211392 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 52091211392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57932409600).

52091211392 is an abundant number, since it is smaller than the sum of its proper divisors (63773607808).

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

52091211392 is a wasteful number, since it uses less digits than its factorization.

52091211392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094 (or 4082 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 52091211392 in words is "fifty-two billion, ninety-one million, two hundred eleven thousand, three hundred ninety-two".