50405891155 has 32 divisors (see below), whose sum is σ = 63452160000. Its totient is φ = 38367111552.

The previous prime is 50405891149. The next prime is 50405891177. The reversal of 50405891155 is 55119850405.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 50405891155 - 2³ = 50405891147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33625596 + ... + 33627094.

It is an arithmetic number, because the mean of its divisors is an integer number (1982880000).

Almost surely, 2^50405891155 is an apocalyptic number.

50405891155 is a deficient number, since it is larger than the sum of its proper divisors (13046268845).

50405891155 is a wasteful number, since it uses less digits than its factorization.

50405891155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883.

The product of its (nonzero) digits is 180000, while the sum is 43.

The spelling of 50405891155 in words is "fifty billion, four hundred five million, eight hundred ninety-one thousand, one hundred fifty-five".