50425391 has 2 divisors, whose sum is σ = 50425392. Its totient is φ = 50425390.

The previous prime is 50425387. The next prime is 50425399. The reversal of 50425391 is 19352405.

50425391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50425391 - 2² = 50425387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50425399) 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, 25212695 + 25212696.

It is an arithmetic number, because the mean of its divisors is an integer number (25212696).

Almost surely, 2^50425391 is an apocalyptic number.

50425391 is a deficient number, since it is larger than the sum of its proper divisors (1).

50425391 is an equidigital number, since it uses as much as digits as its factorization.

50425391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 50425391 is about 7101.0837905210. The cubic root of 50425391 is about 369.4449701154. Note that the first 3 decimals are identical.

Adding to 50425391 its reverse (19352405), we get a palindrome (69777796).

The spelling of 50425391 in words is "fifty million, four hundred twenty-five thousand, three hundred ninety-one".