50225521 has 2 divisors, whose sum is σ = 50225522. Its totient is φ = 50225520.

The previous prime is 50225519. The next prime is 50225557. The reversal of 50225521 is 12552205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40144896 + 10080625 = 6336^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 50225521 - 2¹ = 50225519 is a prime.

Together with 50225519, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 50225492 and 50225501.

It is not a weakly prime, because it can be changed into another prime (50225561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25112760 + 25112761.

It is an arithmetic number, because the mean of its divisors is an integer number (25112761).

Almost surely, 2^50225521 is an apocalyptic number.

It is an amenable number.

50225521 is a deficient number, since it is larger than the sum of its proper divisors (1).

50225521 is an equidigital number, since it uses as much as digits as its factorization.

50225521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 50225521 is about 7086.9966135169. The cubic root of 50225521 is about 368.9562035059.

Adding to 50225521 its reverse (12552205), we get a palindrome (62777726).

The spelling of 50225521 in words is "fifty million, two hundred twenty-five thousand, five hundred twenty-one".