50543749 has 2 divisors, whose sum is σ = 50543750. Its totient is φ = 50543748.

The previous prime is 50543747. The next prime is 50543761. The reversal of 50543749 is 94734505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28547649 + 21996100 = 5343^2 + 4690^2 .

It is a cyclic number.

It is not a de Polignac number, because 50543749 - 2¹ = 50543747 is a prime.

Together with 50543747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50543741) 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, 25271874 + 25271875.

It is an arithmetic number, because the mean of its divisors is an integer number (25271875).

Almost surely, 2^50543749 is an apocalyptic number.

It is an amenable number.

50543749 is a deficient number, since it is larger than the sum of its proper divisors (1).

50543749 is an equidigital number, since it uses as much as digits as its factorization.

50543749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 50543749 is about 7109.4127042956. The cubic root of 50543749 is about 369.7337968339.

The spelling of 50543749 in words is "fifty million, five hundred forty-three thousand, seven hundred forty-nine".