52221445560 has 192 divisors, whose sum is σ = 176091252480. Its totient is φ = 13407528960.

The previous prime is 52221445543. The next prime is 52221445571. The reversal of 52221445560 is 6554412225.

52221445560 is a `hidden beast` number, since 52 + 2 + 2 + 1 + 4 + 45 + 560 = 666.

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 (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2186644 + ... + 2210396.

It is an arithmetic number, because the mean of its divisors is an integer number (917141940).

Almost surely, 2^52221445560 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 52221445560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88045626240).

52221445560 is an abundant number, since it is smaller than the sum of its proper divisors (123869806920).

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

52221445560 is a wasteful number, since it uses less digits than its factorization.

52221445560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23998 (or 23991 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 52221445560 its reverse (6554412225), we get a palindrome (58775857785).

The spelling of 52221445560 in words is "fifty-two billion, two hundred twenty-one million, four hundred forty-five thousand, five hundred sixty".