50189934653 has 4 divisors (see below), whose sum is σ = 50190576540. Its totient is φ = 50189292768.

The previous prime is 50189934643. The next prime is 50189934659. The reversal of 50189934653 is 35643998105.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17603186329 + 32586748324 = 132677^2 + 180518^2 .

It is a cyclic number.

It is not a de Polignac number, because 50189934653 - 2⁴ = 50189934637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50189934595 and 50189934604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50189934659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184250 + ... + 366507.

It is an arithmetic number, because the mean of its divisors is an integer number (12547644135).

Almost surely, 2^50189934653 is an apocalyptic number.

It is an amenable number.

50189934653 is a deficient number, since it is larger than the sum of its proper divisors (641887).

50189934653 is an equidigital number, since it uses as much as digits as its factorization.

50189934653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641886.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 50189934653 in words is "fifty billion, one hundred eighty-nine million, nine hundred thirty-four thousand, six hundred fifty-three".