50587409 has 2 divisors, whose sum is σ = 50587410. Its totient is φ = 50587408.

The previous prime is 50587363. The next prime is 50587417. The reversal of 50587409 is 90478505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36336784 + 14250625 = 6028^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 50587409 - 2¹⁶ = 50521873 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 (50587609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25293704 + 25293705.

It is an arithmetic number, because the mean of its divisors is an integer number (25293705).

Almost surely, 2^50587409 is an apocalyptic number.

It is an amenable number.

50587409 is a deficient number, since it is larger than the sum of its proper divisors (1).

50587409 is an equidigital number, since it uses as much as digits as its factorization.

50587409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 50587409 is about 7112.4826186079. The cubic root of 50587409 is about 369.8402256347.

The spelling of 50587409 in words is "fifty million, five hundred eighty-seven thousand, four hundred nine".