5000044421 has 2 divisors, whose sum is σ = 5000044422. Its totient is φ = 5000044420.

The previous prime is 5000044391. The next prime is 5000044493. The reversal of 5000044421 is 1244400005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4989868321 + 10176100 = 70639^2 + 3190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5000044421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5000044393 and 5000044402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5000040421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500022210 + 2500022211.

It is an arithmetic number, because the mean of its divisors is an integer number (2500022211).

Almost surely, 2^5000044421 is an apocalyptic number.

It is an amenable number.

5000044421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000044421 is an equidigital number, since it uses as much as digits as its factorization.

5000044421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 5000044421 is about 70710.9922218604. The cubic root of 5000044421 is about 1709.9810105845.

Adding to 5000044421 its reverse (1244400005), we get a palindrome (6244444426).

The spelling of 5000044421 in words is "five billion, forty-four thousand, four hundred twenty-one".