50555251918 has 16 divisors (see below), whose sum is σ = 78777707904. Its totient is φ = 24306403680.

The previous prime is 50555251907. The next prime is 50555251937. The reversal of 50555251918 is 81915255505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2587105 + ... + 2606572.

It is an arithmetic number, because the mean of its divisors is an integer number (4923606744).

Almost surely, 2^50555251918 is an apocalyptic number.

50555251918 is a deficient number, since it is larger than the sum of its proper divisors (28222455986).

50555251918 is a wasteful number, since it uses less digits than its factorization.

50555251918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5193867.

The product of its (nonzero) digits is 450000, while the sum is 46.

The spelling of 50555251918 in words is "fifty billion, five hundred fifty-five million, two hundred fifty-one thousand, nine hundred eighteen".