52210521720 has 384 divisors, whose sum is σ = 207944755200. Its totient is φ = 11088949248.

The previous prime is 52210521677. The next prime is 52210521761. The reversal of 52210521720 is 2712501225.

52210521720 is a `hidden beast` number, since 52 + 21 + 0 + 521 + 72 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3376647 + ... + 3392073.

It is an arithmetic number, because the mean of its divisors is an integer number (541522800).

Almost surely, 2^52210521720 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 52210521720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103972377600).

52210521720 is an abundant number, since it is smaller than the sum of its proper divisors (155734233480).

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

52210521720 is a wasteful number, since it uses less digits than its factorization.

52210521720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15547 (or 15540 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The spelling of 52210521720 in words is "fifty-two billion, two hundred ten million, five hundred twenty-one thousand, seven hundred twenty".