49942289 has 2 divisors, whose sum is σ = 49942290. Its totient is φ = 49942288.

The previous prime is 49942259. The next prime is 49942301. The reversal of 49942289 is 98224994.

49942289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49561600 + 380689 = 7040^2 + 617^2 .

It is a cyclic number.

It is not a de Polignac number, because 49942289 - 2⁸ = 49942033 is a prime.

It is not a weakly prime, because it can be changed into another prime (49942219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24971144 + 24971145.

It is an arithmetic number, because the mean of its divisors is an integer number (24971145).

Almost surely, 2^49942289 is an apocalyptic number.

It is an amenable number.

49942289 is a deficient number, since it is larger than the sum of its proper divisors (1).

49942289 is an equidigital number, since it uses as much as digits as its factorization.

49942289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 49942289 is about 7066.9858497099. The cubic root of 49942289 is about 368.2613558683.

The spelling of 49942289 in words is "forty-nine million, nine hundred forty-two thousand, two hundred eighty-nine".