50227921 has 4 divisors (see below), whose sum is σ = 50264500. Its totient is φ = 50191344.

The previous prime is 50227897. The next prime is 50227927. The reversal of 50227921 is 12972205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19580625 + 30647296 = 4425^2 + 5536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50227921 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 50227921.

It is not an unprimeable number, because it can be changed into a prime (50227927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16146 + ... + 19003.

It is an arithmetic number, because the mean of its divisors is an integer number (12566125).

Almost surely, 2^50227921 is an apocalyptic number.

It is an amenable number.

50227921 is a deficient number, since it is larger than the sum of its proper divisors (36579).

50227921 is a wasteful number, since it uses less digits than its factorization.

50227921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36578.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 50227921 is about 7087.1659356897. The cubic root of 50227921 is about 368.9620802048.

The spelling of 50227921 in words is "fifty million, two hundred twenty-seven thousand, nine hundred twenty-one".