50222989 has 2 divisors, whose sum is σ = 50222990. Its totient is φ = 50222988.

The previous prime is 50222987. The next prime is 50222993. The reversal of 50222989 is 98922205.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35462025 + 14760964 = 5955^2 + 3842^2 .

It is a cyclic number.

It is not a de Polignac number, because 50222989 - 2¹ = 50222987 is a prime.

Together with 50222987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50222987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25111494 + 25111495.

It is an arithmetic number, because the mean of its divisors is an integer number (25111495).

Almost surely, 2^50222989 is an apocalyptic number.

It is an amenable number.

50222989 is a deficient number, since it is larger than the sum of its proper divisors (1).

50222989 is an equidigital number, since it uses as much as digits as its factorization.

50222989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 50222989 is about 7086.8179742392. The cubic root of 50222989 is about 368.9500033857.

The spelling of 50222989 in words is "fifty million, two hundred twenty-two thousand, nine hundred eighty-nine".