50499509 has 2 divisors, whose sum is σ = 50499510. Its totient is φ = 50499508.

The previous prime is 50499497. The next prime is 50499517. The reversal of 50499509 is 90599405.

50499509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45941284 + 4558225 = 6778^2 + 2135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50499509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50499529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25249754 + 25249755.

It is an arithmetic number, because the mean of its divisors is an integer number (25249755).

Almost surely, 2^50499509 is an apocalyptic number.

It is an amenable number.

50499509 is a deficient number, since it is larger than the sum of its proper divisors (1).

50499509 is an equidigital number, since it uses as much as digits as its factorization.

50499509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 50499509 is about 7106.3006550525. The cubic root of 50499509 is about 369.6258916485.

The spelling of 50499509 in words is "fifty million, four hundred ninety-nine thousand, five hundred nine".