50223221 has 4 divisors (see below), whose sum is σ = 50433600. Its totient is φ = 50012844.

The previous prime is 50223211. The next prime is 50223233. The reversal of 50223221 is 12232205.

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 50223221 - 2¹⁰ = 50222197 is a prime.

It is a super-2 number, since 2×50223221² = 5044743855229682, which contains 22 as substring.

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 50223221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50223211) 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, 104831 + ... + 105308.

It is an arithmetic number, because the mean of its divisors is an integer number (12608400).

Almost surely, 2^50223221 is an apocalyptic number.

It is an amenable number.

50223221 is a deficient number, since it is larger than the sum of its proper divisors (210379).

50223221 is a wasteful number, since it uses less digits than its factorization.

50223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210378.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 50223221 is about 7086.8343426385. The cubic root of 50223221 is about 368.9505714939.

Adding to 50223221 its reverse (12232205), we get a palindrome (62455426).

The spelling of 50223221 in words is "fifty million, two hundred twenty-three thousand, two hundred twenty-one".