50549 has 2 divisors, whose sum is σ = 50550. Its totient is φ = 50548.

The previous prime is 50543. The next prime is 50551. The reversal of 50549 is 94505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47524 + 3025 = 218^2 + 55^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50549 is a prime.

Together with 50551, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25274 + 25275.

It is an arithmetic number, because the mean of its divisors is an integer number (25275).

2⁵⁰⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

50549 is a deficient number, since it is larger than the sum of its proper divisors (1).

50549 is an equidigital number, since it uses as much as digits as its factorization.

50549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 50549 is about 224.8310476780. The cubic root of 50549 is about 36.9746600296.

Subtracting 50549 from its reverse (94505), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 50549 in words is "fifty thousand, five hundred forty-nine".