50505605556 has 72 divisors (see below), whose sum is σ = 137118514176. Its totient is φ = 14426818560.

The previous prime is 50505605551. The next prime is 50505605561. The reversal of 50505605556 is 65550650505.

50505605556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (50505605551) and next prime (50505605561).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505605551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3680500 + ... + 3694196.

It is an arithmetic number, because the mean of its divisors is an integer number (1904423808).

Almost surely, 2^50505605556 is an apocalyptic number.

It is an amenable number.

50505605556 is an abundant number, since it is smaller than the sum of its proper divisors (86612908620).

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

50505605556 is a wasteful number, since it uses less digits than its factorization.

50505605556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19989 (or 19980 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 42.

The spelling of 50505605556 in words is "fifty billion, five hundred five million, six hundred five thousand, five hundred fifty-six".