22625173 has 4 divisors (see below), whose sum is σ = 22649868. Its totient is φ = 22600480.

The previous prime is 22625149. The next prime is 22625179. The reversal of 22625173 is 37152622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18037009 + 4588164 = 4247^2 + 2142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22625173 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 (22625179) 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, 10918 + ... + 12823.

It is an arithmetic number, because the mean of its divisors is an integer number (5662467).

Almost surely, 2^22625173 is an apocalyptic number.

It is an amenable number.

22625173 is a deficient number, since it is larger than the sum of its proper divisors (24695).

22625173 is an equidigital number, since it uses as much as digits as its factorization.

22625173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24694.

The product of its digits is 5040, while the sum is 28.

The square root of 22625173 is about 4756.5925829316. The cubic root of 22625173 is about 282.8333621740.

Adding to 22625173 its reverse (37152622), we get a palindrome (59777795).

The spelling of 22625173 in words is "twenty-two million, six hundred twenty-five thousand, one hundred seventy-three".