50409253 has 2 divisors, whose sum is σ = 50409254. Its totient is φ = 50409252.

The previous prime is 50409181. The next prime is 50409257. The reversal of 50409253 is 35290405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50027329 + 381924 = 7073^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 50409253 - 2⁹ = 50408741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50409257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25204626 + 25204627.

It is an arithmetic number, because the mean of its divisors is an integer number (25204627).

Almost surely, 2^50409253 is an apocalyptic number.

It is an amenable number.

50409253 is a deficient number, since it is larger than the sum of its proper divisors (1).

50409253 is an equidigital number, since it uses as much as digits as its factorization.

50409253 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 28.

The square root of 50409253 is about 7099.9473941713. The cubic root of 50409253 is about 369.4055538680.

Adding to 50409253 its reverse (35290405), we get a palindrome (85699658).

The spelling of 50409253 in words is "fifty million, four hundred nine thousand, two hundred fifty-three".