22250502 has 24 divisors (see below), whose sum is σ = 48690720. Its totient is φ = 7342800.

The previous prime is 22250489. The next prime is 22250507. The reversal of 22250502 is 20505222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22250507) 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, 4302 + ... + 7937.

It is an arithmetic number, because the mean of its divisors is an integer number (2028780).

Almost surely, 2^22250502 is an apocalyptic number.

22250502 is an abundant number, since it is smaller than the sum of its proper divisors (26440218).

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

22250502 is a wasteful number, since it uses less digits than its factorization.

22250502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348 (or 12345 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 22250502 is about 4717.0437776217. The cubic root of 22250502 is about 281.2634316548.

Adding to 22250502 its reverse (20505222), we get a palindrome (42755724).

The spelling of 22250502 in words is "twenty-two million, two hundred fifty thousand, five hundred two".