50222420 has 36 divisors (see below), whose sum is σ = 112048860. Its totient is φ = 18905088.

The previous prime is 50222413. The next prime is 50222423. The reversal of 50222420 is 2422205.

It can be written as a sum of positive squares in 6 ways, for example, as 9721924 + 40500496 = 3118^2 + 6364^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50222423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1436 + ... + 10124.

Almost surely, 2^50222420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50222420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56024430).

50222420 is an abundant number, since it is smaller than the sum of its proper divisors (61826440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50222420 is a wasteful number, since it uses less digits than its factorization.

50222420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8732 (or 8713 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 50222420 is about 7086.7778291689. Note that the first 3 decimals coincide. The cubic root of 50222420 is about 368.9486100441.

Adding to 50222420 its reverse (2422205), we get a palindrome (52644625).

It can be divided in two parts, 502 and 22420, that added together give a palindrome (22922).

The spelling of 50222420 in words is "fifty million, two hundred twenty-two thousand, four hundred twenty".