50821285 has 8 divisors (see below), whose sum is σ = 61168536. Its totient is φ = 40535040.

The previous prime is 50821271. The next prime is 50821289. The reversal of 50821285 is 58212805.

50821285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6385729 + 44435556 = 2527^2 + 6666^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50821285 - 2⁷ = 50821157 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 (50821289) 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 7 ways as a sum of consecutive naturals, for example, 13396 + ... + 16765.

It is an arithmetic number, because the mean of its divisors is an integer number (7646067).

Almost surely, 2^50821285 is an apocalyptic number.

It is an amenable number.

50821285 is a deficient number, since it is larger than the sum of its proper divisors (10347251).

50821285 is a wasteful number, since it uses less digits than its factorization.

50821285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30503.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 50821285 is about 7128.9048948629. The cubic root of 50821285 is about 370.4092987051.

The spelling of 50821285 in words is "fifty million, eight hundred twenty-one thousand, two hundred eighty-five".