52447515120 has 1280 divisors, whose sum is σ = 245744271360. Its totient is φ = 9928396800.

The previous prime is 52447515097. The next prime is 52447515221. The reversal of 52447515120 is 2151574425.

52447515120 is a `hidden beast` number, since 52 + 4 + 47 + 51 + 512 + 0 = 666.

It is a super-2 number, since 2×52447515120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 255 ways as a sum of consecutive naturals, for example, 274594225 + ... + 274594415.

It is an arithmetic number, because the mean of its divisors is an integer number (191987712).

Almost surely, 2^52447515120 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 52447515120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122872135680).

52447515120 is an abundant number, since it is smaller than the sum of its proper divisors (193296756240).

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

52447515120 is a wasteful number, since it uses less digits than its factorization.

52447515120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The spelling of 52447515120 in words is "fifty-two billion, four hundred forty-seven million, five hundred fifteen thousand, one hundred twenty".