50204809 has 2 divisors, whose sum is σ = 50204810. Its totient is φ = 50204808.

The previous prime is 50204807. The next prime is 50204827. The reversal of 50204809 is 90840205.

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., 42614784 + 7590025 = 6528^2 + 2755^2 .

It is a cyclic number.

It is not a de Polignac number, because 50204809 - 2¹ = 50204807 is a prime.

Together with 50204807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50204807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25102404 + 25102405.

It is an arithmetic number, because the mean of its divisors is an integer number (25102405).

Almost surely, 2^50204809 is an apocalyptic number.

It is an amenable number.

50204809 is a deficient number, since it is larger than the sum of its proper divisors (1).

50204809 is an equidigital number, since it uses as much as digits as its factorization.

50204809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 50204809 is about 7085.5351950294. The cubic root of 50204809 is about 368.9054798139.

The spelling of 50204809 in words is "fifty million, two hundred four thousand, eight hundred nine".