50497409 has 2 divisors, whose sum is σ = 50497410. Its totient is φ = 50497408.

The previous prime is 50497379. The next prime is 50497417. The reversal of 50497409 is 90479405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50481025 + 16384 = 7105^2 + 128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50497409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (50491409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25248704 + 25248705.

It is an arithmetic number, because the mean of its divisors is an integer number (25248705).

Almost surely, 2^50497409 is an apocalyptic number.

It is an amenable number.

50497409 is a deficient number, since it is larger than the sum of its proper divisors (1).

50497409 is an equidigital number, since it uses as much as digits as its factorization.

50497409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 50497409 is about 7106.1528973137. The cubic root of 50497409 is about 369.6207680004.

The spelling of 50497409 in words is "fifty million, four hundred ninety-seven thousand, four hundred nine".