22251005 has 32 divisors (see below), whose sum is σ = 32237568. Its totient is φ = 14414400.

The previous prime is 22250999. The next prime is 22251013. The reversal of 22251005 is 50015222.

It is not a de Polignac number, because 22251005 - 2⁸ = 22250749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105350 + ... + 105560.

It is an arithmetic number, because the mean of its divisors is an integer number (1007424).

Almost surely, 2^22251005 is an apocalyptic number.

It is an amenable number.

22251005 is a deficient number, since it is larger than the sum of its proper divisors (9986563).

22251005 is a wasteful number, since it uses less digits than its factorization.

22251005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 22251005 is about 4717.0970946123. The cubic root of 22251005 is about 281.2655510743.

Adding to 22251005 its reverse (50015222), we get a palindrome (72266227).

The spelling of 22251005 in words is "twenty-two million, two hundred fifty-one thousand, five".