50489749 has 2 divisors, whose sum is σ = 50489750. Its totient is φ = 50489748.

The previous prime is 50489743. The next prime is 50489753. The reversal of 50489749 is 94798405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26967249 + 23522500 = 5193^2 + 4850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50489749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50489699 and 50489708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50489743) 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, 25244874 + 25244875.

It is an arithmetic number, because the mean of its divisors is an integer number (25244875).

Almost surely, 2^50489749 is an apocalyptic number.

It is an amenable number.

50489749 is a deficient number, since it is larger than the sum of its proper divisors (1).

50489749 is an equidigital number, since it uses as much as digits as its factorization.

50489749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 50489749 is about 7105.6139073271. The cubic root of 50489749 is about 369.6020776800.

The spelling of 50489749 in words is "fifty million, four hundred eighty-nine thousand, seven hundred forty-nine".