50636044421 has 2 divisors, whose sum is σ = 50636044422. Its totient is φ = 50636044420.

The previous prime is 50636044367. The next prime is 50636044441. The reversal of 50636044421 is 12444063605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29053202500 + 21582841921 = 170450^2 + 146911^2 .

It is a cyclic number.

It is not a de Polignac number, because 50636044421 - 2⁶ = 50636044357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50636044441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25318022210 + 25318022211.

It is an arithmetic number, because the mean of its divisors is an integer number (25318022211).

Almost surely, 2^50636044421 is an apocalyptic number.

It is an amenable number.

50636044421 is a deficient number, since it is larger than the sum of its proper divisors (1).

50636044421 is an equidigital number, since it uses as much as digits as its factorization.

50636044421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 50636044421 in words is "fifty billion, six hundred thirty-six million, forty-four thousand, four hundred twenty-one".