50188899217 has 4 divisors (see below), whose sum is σ = 50227776496. Its totient is φ = 50150021940.

The previous prime is 50188899203. The next prime is 50188899221. The reversal of 50188899217 is 71299888105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50188899217 - 2²³ = 50180510609 is a prime.

It is a super-2 number, since 2×50188899217² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50188893217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19436703 + ... + 19439284.

It is an arithmetic number, because the mean of its divisors is an integer number (12556944124).

Almost surely, 2^50188899217 is an apocalyptic number.

It is an amenable number.

50188899217 is a deficient number, since it is larger than the sum of its proper divisors (38877279).

50188899217 is a wasteful number, since it uses less digits than its factorization.

50188899217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38877278.

The product of its (nonzero) digits is 2903040, while the sum is 58.

The spelling of 50188899217 in words is "fifty billion, one hundred eighty-eight million, eight hundred ninety-nine thousand, two hundred seventeen".