50992189 has 2 divisors, whose sum is σ = 50992190. Its totient is φ = 50992188.

The previous prime is 50992177. The next prime is 50992211. The reversal of 50992189 is 98129905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26440164 + 24552025 = 5142^2 + 4955^2 .

It is a cyclic number.

It is not a de Polignac number, because 50992189 - 2¹³ = 50983997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50992169) 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, 25496094 + 25496095.

It is an arithmetic number, because the mean of its divisors is an integer number (25496095).

Almost surely, 2^50992189 is an apocalyptic number.

It is an amenable number.

50992189 is a deficient number, since it is larger than the sum of its proper divisors (1).

50992189 is an equidigital number, since it uses as much as digits as its factorization.

50992189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 50992189 is about 7140.8815282148. The cubic root of 50992189 is about 370.8240435777.

The spelling of 50992189 in words is "fifty million, nine hundred ninety-two thousand, one hundred eighty-nine".