50041451221 has 4 divisors (see below), whose sum is σ = 50292916000. Its totient is φ = 49789986444.

The previous prime is 50041451147. The next prime is 50041451227. The reversal of 50041451221 is 12215414005.

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 50041451221 - 2⁹ = 50041450709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50041451227) 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, 125732091 + ... + 125732488.

It is an arithmetic number, because the mean of its divisors is an integer number (12573229000).

Almost surely, 2^50041451221 is an apocalyptic number.

It is an amenable number.

50041451221 is a deficient number, since it is larger than the sum of its proper divisors (251464779).

50041451221 is a wasteful number, since it uses less digits than its factorization.

50041451221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251464778.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 50041451221 its reverse (12215414005), we get a palindrome (62256865226).

The spelling of 50041451221 in words is "fifty billion, forty-one million, four hundred fifty-one thousand, two hundred twenty-one".