50505549999972 has 12 divisors (see below), whose sum is σ = 117846283333296. Its totient is φ = 16835183333320.

The previous prime is 50505549999953. The next prime is 50505549999997. The reversal of 50505549999972 is 27999994550505.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2104397916654 + ... + 2104397916677.

It is an arithmetic number, because the mean of its divisors is an integer number (9820523611108).

Almost surely, 2^{50505549999972} is an apocalyptic number.

It is an amenable number.

50505549999972 is an abundant number, since it is smaller than the sum of its proper divisors (67340733333324).

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

50505549999972 is a wasteful number, since it uses less digits than its factorization.

50505549999972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208795833338 (or 4208795833336 counting only the distinct ones).

The product of its (nonzero) digits is 2066715000, while the sum is 78.

The spelling of 50505549999972 in words is "fifty trillion, five hundred five billion, five hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred seventy-two".