50989973 has 2 divisors, whose sum is σ = 50989974. Its totient is φ = 50989972.

The previous prime is 50989963. The next prime is 50989993. The reversal of 50989973 is 37998905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41705764 + 9284209 = 6458^2 + 3047^2 .

It is a cyclic number.

It is not a de Polignac number, because 50989973 - 2⁶ = 50989909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50989903) 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, 25494986 + 25494987.

It is an arithmetic number, because the mean of its divisors is an integer number (25494987).

Almost surely, 2^50989973 is an apocalyptic number.

It is an amenable number.

50989973 is a deficient number, since it is larger than the sum of its proper divisors (1).

50989973 is an equidigital number, since it uses as much as digits as its factorization.

50989973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 50989973 is about 7140.7263636132. The cubic root of 50989973 is about 370.8186717877.

The spelling of 50989973 in words is "fifty million, nine hundred eighty-nine thousand, nine hundred seventy-three".