50215127155 has 4 divisors (see below), whose sum is σ = 60258152592. Its totient is φ = 40172101720.

The previous prime is 50215127143. The next prime is 50215127197. The reversal of 50215127155 is 55172151205.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 50215127155 - 2¹³ = 50215118963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50215127155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5021512711 + ... + 5021512720.

It is an arithmetic number, because the mean of its divisors is an integer number (15064538148).

Almost surely, 2^50215127155 is an apocalyptic number.

50215127155 is a deficient number, since it is larger than the sum of its proper divisors (10043025437).

50215127155 is a wasteful number, since it uses less digits than its factorization.

50215127155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10043025436.

The product of its (nonzero) digits is 17500, while the sum is 34.

The spelling of 50215127155 in words is "fifty billion, two hundred fifteen million, one hundred twenty-seven thousand, one hundred fifty-five".