54021520080 has 640 divisors, whose sum is σ = 212694958080. Its totient is φ = 12483072000.

The previous prime is 54021520051. The next prime is 54021520093. The reversal of 54021520080 is 8002512045.

It is a happy number.

54021520080 is a `hidden beast` number, since 5 + 40 + 21 + 520 + 0 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 52295244 + ... + 52296276.

It is an arithmetic number, because the mean of its divisors is an integer number (332335872).

Almost surely, 2^54021520080 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 54021520080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106347479040).

54021520080 is an abundant number, since it is smaller than the sum of its proper divisors (158673438000).

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

54021520080 is a wasteful number, since it uses less digits than its factorization.

54021520080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 54021520080 in words is "fifty-four billion, twenty-one million, five hundred twenty thousand, eighty".