22240625 has 24 divisors (see below), whose sum is σ = 30373056. Its totient is φ = 16150000.

The previous prime is 22240601. The next prime is 22240637. The reversal of 22240625 is 52604222.

It is a de Polignac number, because none of the positive numbers 2^k-22240625 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 22240625.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34052 + ... + 34698.

It is an arithmetic number, because the mean of its divisors is an integer number (1265544).

Almost surely, 2^22240625 is an apocalyptic number.

22240625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22240625 is a deficient number, since it is larger than the sum of its proper divisors (8132431).

22240625 is an frugal number, since it uses more digits than its factorization.

22240625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 22240625 is about 4715.9967133152. The cubic root of 22240625 is about 281.2218078737.

Adding to 22240625 its reverse (52604222), we get a palindrome (74844847).

The spelling of 22240625 in words is "twenty-two million, two hundred forty thousand, six hundred twenty-five".