50223991 has 2 divisors, whose sum is σ = 50223992. Its totient is φ = 50223990.

The previous prime is 50223989. The next prime is 50223997. The reversal of 50223991 is 19932205.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50223991 - 2¹ = 50223989 is a prime.

Together with 50223989, 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 (50223997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25111995 + 25111996.

It is an arithmetic number, because the mean of its divisors is an integer number (25111996).

Almost surely, 2^50223991 is an apocalyptic number.

50223991 is a deficient number, since it is larger than the sum of its proper divisors (1).

50223991 is an equidigital number, since it uses as much as digits as its factorization.

50223991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 50223991 is about 7086.8886685202. Note that the first 3 decimals coincide. The cubic root of 50223991 is about 368.9524570127.

The spelling of 50223991 in words is "fifty million, two hundred twenty-three thousand, nine hundred ninety-one".