22450007 has 4 divisors (see below), whose sum is σ = 22489896. Its totient is φ = 22410120.

The previous prime is 22450003. The next prime is 22450027. The reversal of 22450007 is 70005422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22450007 - 2² = 22450003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22450003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19088 + ... + 20229.

It is an arithmetic number, because the mean of its divisors is an integer number (5622474).

Almost surely, 2^22450007 is an apocalyptic number.

22450007 is a deficient number, since it is larger than the sum of its proper divisors (39889).

22450007 is an equidigital number, since it uses as much as digits as its factorization.

22450007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39888.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 22450007 is about 4738.1438348788. The cubic root of 22450007 is about 282.1015637723.

Adding to 22450007 its reverse (70005422), we get a palindrome (92455429).

The spelling of 22450007 in words is "twenty-two million, four hundred fifty thousand, seven".