4050625421 has 2 divisors, whose sum is σ = 4050625422. Its totient is φ = 4050625420.

The previous prime is 4050625399. The next prime is 4050625429. The reversal of 4050625421 is 1245260504.

4050625421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3661944196 + 388681225 = 60514^2 + 19715^2 .

It is a cyclic number.

It is not a de Polignac number, because 4050625421 - 2¹⁸ = 4050363277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4050625429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025312710 + 2025312711.

It is an arithmetic number, because the mean of its divisors is an integer number (2025312711).

Almost surely, 2^4050625421 is an apocalyptic number.

It is an amenable number.

4050625421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4050625421 is an equidigital number, since it uses as much as digits as its factorization.

4050625421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 4050625421 is about 63644.5238885483. The cubic root of 4050625421 is about 1594.0699000427.

Adding to 4050625421 its reverse (1245260504), we get a palindrome (5295885925).

The spelling of 4050625421 in words is "four billion, fifty million, six hundred twenty-five thousand, four hundred twenty-one".