50220001 has 8 divisors (see below), whose sum is σ = 55341440. Its totient is φ = 45278352.

The previous prime is 50219999. The next prime is 50220007. The reversal of 50220001 is 10002205.

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

It is a cyclic number.

It is not a de Polignac number, because 50220001 - 2¹ = 50219999 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 50220001.

It is not an unprimeable number, because it can be changed into a prime (50220007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44361 + ... + 45478.

It is an arithmetic number, because the mean of its divisors is an integer number (6917680).

Almost surely, 2^50220001 is an apocalyptic number.

It is an amenable number.

50220001 is a deficient number, since it is larger than the sum of its proper divisors (5121439).

50220001 is a wasteful number, since it uses less digits than its factorization.

50220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89895.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 50220001 is about 7086.6071571663. The cubic root of 50220001 is about 368.9426863881.

Adding to 50220001 its reverse (10002205), we get a palindrome (60222206).

It can be divided in two parts, 502 and 20001, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 50220001 in words is "fifty million, two hundred twenty thousand, one".