50821845 has 32 divisors (see below), whose sum is σ = 83982720. Its totient is φ = 26231040.

The previous prime is 50821817. The next prime is 50821867. The reversal of 50821845 is 54812805.

It is not a de Polignac number, because 50821845 - 2⁶ = 50821781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60891 + ... + 61719.

It is an arithmetic number, because the mean of its divisors is an integer number (2624460).

Almost surely, 2^50821845 is an apocalyptic number.

It is an amenable number.

50821845 is a deficient number, since it is larger than the sum of its proper divisors (33160875).

50821845 is a wasteful number, since it uses less digits than its factorization.

50821845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 50821845 is about 7128.9441714745. The cubic root of 50821845 is about 370.4106592141.

The spelling of 50821845 in words is "fifty million, eight hundred twenty-one thousand, eight hundred forty-five".