50134541221 has 4 divisors (see below), whose sum is σ = 50224549932. Its totient is φ = 50044532512.

The previous prime is 50134541183. The next prime is 50134541231. The reversal of 50134541221 is 12214543105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12214543105 = 5 ⋅2442908621.

It can be written as a sum of positive squares in 2 ways, for example, as 24817276225 + 25317264996 = 157535^2 + 159114^2 .

It is a cyclic number.

It is not a de Polignac number, because 50134541221 - 2¹¹ = 50134539173 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 50134541221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50134541231) 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, 45003520 + ... + 45004633.

It is an arithmetic number, because the mean of its divisors is an integer number (12556137483).

Almost surely, 2^50134541221 is an apocalyptic number.

It is an amenable number.

50134541221 is a deficient number, since it is larger than the sum of its proper divisors (90008711).

50134541221 is an equidigital number, since it uses as much as digits as its factorization.

50134541221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90008710.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 50134541221 in words is "fifty billion, one hundred thirty-four million, five hundred forty-one thousand, two hundred twenty-one".