52521405120 has 336 divisors, whose sum is σ = 190550231040. Its totient is φ = 13241346048.

The previous prime is 52521405047. The next prime is 52521405137. The reversal of 52521405120 is 2150412525.

52521405120 is a `hidden beast` number, since 5 + 2 + 5 + 2 + 140 + 512 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48317217 + ... + 48318303.

Almost surely, 2^52521405120 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 52521405120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95275115520).

52521405120 is an abundant number, since it is smaller than the sum of its proper divisors (138028825920).

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

52521405120 is a wasteful number, since it uses less digits than its factorization.

52521405120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 52521405120 its reverse (2150412525), we get a palindrome (54671817645).

The spelling of 52521405120 in words is "fifty-two billion, five hundred twenty-one million, four hundred five thousand, one hundred twenty".