50619221 has 2 divisors, whose sum is σ = 50619222. Its totient is φ = 50619220.

The previous prime is 50619199. The next prime is 50619223. The reversal of 50619221 is 12291605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50566321 + 52900 = 7111^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 50619221 - 2⁶ = 50619157 is a prime.

It is a Sophie Germain prime.

Together with 50619223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50619223) 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, 25309610 + 25309611.

It is an arithmetic number, because the mean of its divisors is an integer number (25309611).

Almost surely, 2^50619221 is an apocalyptic number.

It is an amenable number.

50619221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50619221 is an equidigital number, since it uses as much as digits as its factorization.

50619221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 50619221 is about 7114.7186170642. The cubic root of 50619221 is about 369.9177343279.

The spelling of 50619221 in words is "fifty million, six hundred nineteen thousand, two hundred twenty-one".