50115409 has 2 divisors, whose sum is σ = 50115410. Its totient is φ = 50115408.

The previous prime is 50115389. The next prime is 50115463. The reversal of 50115409 is 90451105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48233025 + 1882384 = 6945^2 + 1372^2 .

It is a cyclic number.

It is not a de Polignac number, because 50115409 - 2⁷ = 50115281 is a prime.

It is not a weakly prime, because it can be changed into another prime (50115469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25057704 + 25057705.

It is an arithmetic number, because the mean of its divisors is an integer number (25057705).

Almost surely, 2^50115409 is an apocalyptic number.

It is an amenable number.

50115409 is a deficient number, since it is larger than the sum of its proper divisors (1).

50115409 is an equidigital number, since it uses as much as digits as its factorization.

50115409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 50115409 is about 7079.2237568818. The cubic root of 50115409 is about 368.6863789886.

The spelling of 50115409 in words is "fifty million, one hundred fifteen thousand, four hundred nine".