53521866223488 has 768 divisors, whose sum is σ = 177659737382400. Its totient is φ = 15327951667200.

The previous prime is 53521866223481. The next prime is 53521866223523. The reversal of 53521866223488 is 88432266812535.

53521866223488 is a `hidden beast` number, since 5 + 3 + 52 + 1 + 86 + 6 + 2 + 23 + 488 = 666.

53521866223488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53521866223488² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53521866223481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25115844183 + ... + 25115846313.

It is an arithmetic number, because the mean of its divisors is an integer number (231327783050).

Almost surely, 2^{53521866223488} 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 53521866223488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88829868691200).

53521866223488 is an abundant number, since it is smaller than the sum of its proper divisors (124137871158912).

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

53521866223488 is a wasteful number, since it uses less digits than its factorization.

53521866223488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691 (or 3676 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 63.

The spelling of 53521866223488 in words is "fifty-three trillion, five hundred twenty-one billion, eight hundred sixty-six million, two hundred twenty-three thousand, four hundred eighty-eight".