52111341520 has 80 divisors (see below), whose sum is σ = 138711479040. Its totient is φ = 17835236352.

The previous prime is 52111341467. The next prime is 52111341593. The reversal of 52111341520 is 2514311125.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236869 + ... + 400411.

It is an arithmetic number, because the mean of its divisors is an integer number (1733893488).

Almost surely, 2^52111341520 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 52111341520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69355739520).

52111341520 is an abundant number, since it is smaller than the sum of its proper divisors (86600137520).

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

52111341520 is a wasteful number, since it uses less digits than its factorization.

52111341520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164132 (or 164126 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 52111341520 its reverse (2514311125), we get a palindrome (54625652645).

The spelling of 52111341520 in words is "fifty-two billion, one hundred eleven million, three hundred forty-one thousand, five hundred twenty".