22225005 has 48 divisors (see below), whose sum is σ = 42793920. Its totient is φ = 10579200.

The previous prime is 22224973. The next prime is 22225019. The reversal of 22225005 is 50052222.

It is not a de Polignac number, because 22225005 - 2⁵ = 22224973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28825 + ... + 29585.

It is an arithmetic number, because the mean of its divisors is an integer number (891540).

Almost surely, 2^22225005 is an apocalyptic number.

It is an amenable number.

22225005 is a deficient number, since it is larger than the sum of its proper divisors (20568915).

22225005 is a wasteful number, since it uses less digits than its factorization.

22225005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 839 counting only the distinct ones).

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

The square root of 22225005 is about 4714.3403568262. The cubic root of 22225005 is about 281.1559567058.

Adding to 22225005 its reverse (50052222), we get a palindrome (72277227).

It can be divided in two parts, 2222 and 5005, that added together give a palindrome (7227).

The spelling of 22225005 in words is "twenty-two million, two hundred twenty-five thousand, five".