50228821 has 4 divisors (see below), whose sum is σ = 50406592. Its totient is φ = 50051052.

The previous prime is 50228819. The next prime is 50228833. The reversal of 50228821 is 12882205.

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 50228821 - 2¹ = 50228819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50228821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50228221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88461 + ... + 89026.

It is an arithmetic number, because the mean of its divisors is an integer number (12601648).

Almost surely, 2^50228821 is an apocalyptic number.

It is an amenable number.

50228821 is a deficient number, since it is larger than the sum of its proper divisors (177771).

50228821 is a wasteful number, since it uses less digits than its factorization.

50228821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177770.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 50228821 is about 7087.2294304615. The cubic root of 50228821 is about 368.9642839186.

The spelling of 50228821 in words is "fifty million, two hundred twenty-eight thousand, eight hundred twenty-one".