50849821 has 4 divisors (see below), whose sum is σ = 55472544. Its totient is φ = 46227100.

The previous prime is 50849819. The next prime is 50849863. The reversal of 50849821 is 12894805.

50849821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50849821 - 2¹ = 50849819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50849621) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311345 + ... + 2311366.

It is an arithmetic number, because the mean of its divisors is an integer number (13868136).

Almost surely, 2^50849821 is an apocalyptic number.

It is an amenable number.

50849821 is a deficient number, since it is larger than the sum of its proper divisors (4622723).

50849821 is a wasteful number, since it uses less digits than its factorization.

50849821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622722.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 50849821 is about 7130.9060434141. The cubic root of 50849821 is about 370.4786136390.

The spelling of 50849821 in words is "fifty million, eight hundred forty-nine thousand, eight hundred twenty-one".