55050527778 has 16 divisors (see below), whose sum is σ = 110235171456. Its totient is φ = 18327823280.

The previous prime is 55050527773. The next prime is 55050527789. The reversal of 55050527778 is 87772505055.

It is a self number, because there is not a number n which added to its sum of digits gives 55050527778.

It is not an unprimeable number, because it can be changed into a prime (55050527773) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5582826 + ... + 5592677.

It is an arithmetic number, because the mean of its divisors is an integer number (6889698216).

Almost surely, 2^55050527778 is an apocalyptic number.

55050527778 is an abundant number, since it is smaller than the sum of its proper divisors (55184643678).

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

55050527778 is a wasteful number, since it uses less digits than its factorization.

55050527778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11176329.

The product of its (nonzero) digits is 3430000, while the sum is 51.

The spelling of 55050527778 in words is "fifty-five billion, fifty million, five hundred twenty-seven thousand, seven hundred seventy-eight".