50422021 has 4 divisors (see below), whose sum is σ = 54300652. Its totient is φ = 46543392.

The previous prime is 50422013. The next prime is 50422079. The reversal of 50422021 is 12022405.

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 9641025 + 40780996 = 3105^2 + 6386^2 .

It is a cyclic number.

It is not a de Polignac number, because 50422021 - 2³ = 50422013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50421986 and 50422004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50422091) 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, 1939296 + ... + 1939321.

It is an arithmetic number, because the mean of its divisors is an integer number (13575163).

Almost surely, 2^50422021 is an apocalyptic number.

It is an amenable number.

50422021 is a deficient number, since it is larger than the sum of its proper divisors (3878631).

50422021 is a wasteful number, since it uses less digits than its factorization.

50422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878630.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 50422021 is about 7100.8464988338. The cubic root of 50422021 is about 369.4367397559.

Adding to 50422021 its reverse (12022405), we get a palindrome (62444426).

The spelling of 50422021 in words is "fifty million, four hundred twenty-two thousand, twenty-one".