50428649 has 2 divisors, whose sum is σ = 50428650. Its totient is φ = 50428648.

The previous prime is 50428601. The next prime is 50428687. The reversal of 50428649 is 94682405.

50428649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (50428687) can be obtained adding 50428649 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48720400 + 1708249 = 6980^2 + 1307^2 .

It is a cyclic number.

It is not a de Polignac number, because 50428649 - 2¹⁶ = 50363113 is a prime.

It is not a weakly prime, because it can be changed into another prime (50428699) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25214324 + 25214325.

It is an arithmetic number, because the mean of its divisors is an integer number (25214325).

Almost surely, 2^50428649 is an apocalyptic number.

It is an amenable number.

50428649 is a deficient number, since it is larger than the sum of its proper divisors (1).

50428649 is an equidigital number, since it uses as much as digits as its factorization.

50428649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 50428649 is about 7101.3131884180. The cubic root of 50428649 is about 369.4529265951.

The spelling of 50428649 in words is "fifty million, four hundred twenty-eight thousand, six hundred forty-nine".