4050545209 has 2 divisors, whose sum is σ = 4050545210. Its totient is φ = 4050545208.

The previous prime is 4050545197. The next prime is 4050545237. The reversal of 4050545209 is 9025450504.

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., 3884779584 + 165765625 = 62328^2 + 12875^2 .

It is a cyclic number.

It is not a de Polignac number, because 4050545209 - 2¹³ = 4050537017 is a prime.

It is not a weakly prime, because it can be changed into another prime (4050545809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025272604 + 2025272605.

It is an arithmetic number, because the mean of its divisors is an integer number (2025272605).

Almost surely, 2^4050545209 is an apocalyptic number.

It is an amenable number.

4050545209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4050545209 is an equidigital number, since it uses as much as digits as its factorization.

4050545209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 4050545209 is about 63643.8937290923. The cubic root of 4050545209 is about 1594.0593778504.

The spelling of 4050545209 in words is "four billion, fifty million, five hundred forty-five thousand, two hundred nine".