50155605555 has 32 divisors (see below), whose sum is σ = 87752395008. Its totient is φ = 24260073600.

The previous prime is 50155605553. The next prime is 50155605601. The reversal of 50155605555 is 55550655105.

It is not a de Polignac number, because 50155605555 - 2¹ = 50155605553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50155605551) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 291549 + ... + 430478.

It is an arithmetic number, because the mean of its divisors is an integer number (2742262344).

Almost surely, 2^50155605555 is an apocalyptic number.

50155605555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

50155605555 is a deficient number, since it is larger than the sum of its proper divisors (37596789453).

50155605555 is a wasteful number, since it uses less digits than its factorization.

50155605555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722467.

The product of its (nonzero) digits is 468750, while the sum is 42.

The spelling of 50155605555 in words is "fifty billion, one hundred fifty-five million, six hundred five thousand, five hundred fifty-five".