50005551155 has 16 divisors (see below), whose sum is σ = 68607934464. Its totient is φ = 34275074400.

The previous prime is 50005551143. The next prime is 50005551157. The reversal of 50005551155 is 55115550005.

It is not a de Polignac number, because 50005551155 - 2⁴ = 50005551139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50005551157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216371 + ... + 383180.

It is an arithmetic number, because the mean of its divisors is an integer number (4287995904).

Almost surely, 2^50005551155 is an apocalyptic number.

50005551155 is a deficient number, since it is larger than the sum of its proper divisors (18602383309).

50005551155 is a wasteful number, since it uses less digits than its factorization.

50005551155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601946.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 50005551155 in words is "fifty billion, five million, five hundred fifty-one thousand, one hundred fifty-five".