50545009 has 2 divisors, whose sum is σ = 50545010. Its totient is φ = 50545008.

The previous prime is 50544983. The next prime is 50545039. The reversal of 50545009 is 90054505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 418609 = 7080^2 + 647^2 .

It is a cyclic number.

It is not a de Polignac number, because 50545009 - 2¹³ = 50536817 is a prime.

It is not a weakly prime, because it can be changed into another prime (50545039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25272504 + 25272505.

It is an arithmetic number, because the mean of its divisors is an integer number (25272505).

Almost surely, 2^50545009 is an apocalyptic number.

It is an amenable number.

50545009 is a deficient number, since it is larger than the sum of its proper divisors (1).

50545009 is an equidigital number, since it uses as much as digits as its factorization.

50545009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 50545009 is about 7109.5013186580. The cubic root of 50545009 is about 369.7368691605.

The spelling of 50545009 in words is "fifty million, five hundred forty-five thousand, nine".