22551005 has 8 divisors (see below), whose sum is σ = 28485600. Its totient is φ = 17091216.

The previous prime is 22550989. The next prime is 22551007. The reversal of 22551005 is 50015522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22551005 - 2⁴ = 22550989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118595 + ... + 118784.

It is an arithmetic number, because the mean of its divisors is an integer number (3560700).

Almost surely, 2^22551005 is an apocalyptic number.

It is an amenable number.

22551005 is a deficient number, since it is larger than the sum of its proper divisors (5934595).

22551005 is a wasteful number, since it uses less digits than its factorization.

22551005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237403.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 22551005 is about 4748.7898458449. The cubic root of 22551005 is about 282.5239700861.

Adding to 22551005 its reverse (50015522), we get a palindrome (72566527).

The spelling of 22551005 in words is "twenty-two million, five hundred fifty-one thousand, five".