55067768280 has 384 divisors, whose sum is σ = 207408314880. Its totient is φ = 12411463680.

The previous prime is 55067768209. The next prime is 55067768291. The reversal of 55067768280 is 8286776055.

55067768280 is a `hidden beast` number, since 5 + 506 + 77 + 68 + 2 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89250532 + ... + 89251148.

It is an arithmetic number, because the mean of its divisors is an integer number (540125820).

Almost surely, 2^55067768280 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 55067768280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103704157440).

55067768280 is an abundant number, since it is smaller than the sum of its proper divisors (152340546600).

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

55067768280 is a wasteful number, since it uses less digits than its factorization.

55067768280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 55067768280 in words is "fifty-five billion, sixty-seven million, seven hundred sixty-eight thousand, two hundred eighty".