4050546421 has 2 divisors, whose sum is σ = 4050546422. Its totient is φ = 4050546420.

The previous prime is 4050546413. The next prime is 4050546431. The reversal of 4050546421 is 1246450504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4049922321 + 624100 = 63639^2 + 790^2 .

It is a cyclic number.

It is not a de Polignac number, because 4050546421 - 2³ = 4050546413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4050546431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025273210 + 2025273211.

It is an arithmetic number, because the mean of its divisors is an integer number (2025273211).

Almost surely, 2^4050546421 is an apocalyptic number.

It is an amenable number.

4050546421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4050546421 is an equidigital number, since it uses as much as digits as its factorization.

4050546421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 4050546421 is about 63643.9032508221. The cubic root of 4050546421 is about 1594.0595368413.

Adding to 4050546421 its reverse (1246450504), we get a palindrome (5296996925).

The spelling of 4050546421 in words is "four billion, fifty million, five hundred forty-six thousand, four hundred twenty-one".