50840609 has 2 divisors, whose sum is σ = 50840610. Its totient is φ = 50840608.

The previous prime is 50840551. The next prime is 50840611. The reversal of 50840609 is 90604805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48344209 + 2496400 = 6953^2 + 1580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50840609 is a prime.

It is a Sophie Germain prime.

Together with 50840611, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p_3048557 and since 50840609 and 3048557 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (50840809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25420304 + 25420305.

It is an arithmetic number, because the mean of its divisors is an integer number (25420305).

Almost surely, 2^50840609 is an apocalyptic number.

It is an amenable number.

50840609 is a deficient number, since it is larger than the sum of its proper divisors (1).

50840609 is an equidigital number, since it uses as much as digits as its factorization.

50840609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 50840609 is about 7130.2600934328. The cubic root of 50840609 is about 370.4562402066.

The spelling of 50840609 in words is "fifty million, eight hundred forty thousand, six hundred nine".