50821549 has 2 divisors, whose sum is σ = 50821550. Its totient is φ = 50821548.

The previous prime is 50821487. The next prime is 50821553. The reversal of 50821549 is 94512805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28965924 + 21855625 = 5382^2 + 4675^2 .

It is a cyclic number.

It is not a de Polignac number, because 50821549 - 2⁹ = 50821037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50821049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25410774 + 25410775.

It is an arithmetic number, because the mean of its divisors is an integer number (25410775).

Almost surely, 2^50821549 is an apocalyptic number.

It is an amenable number.

50821549 is a deficient number, since it is larger than the sum of its proper divisors (1).

50821549 is an equidigital number, since it uses as much as digits as its factorization.

50821549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 50821549 is about 7128.9234110067. The cubic root of 50821549 is about 370.4099400892.

The spelling of 50821549 in words is "fifty million, eight hundred twenty-one thousand, five hundred forty-nine".