22550173 has 2 divisors, whose sum is σ = 22550174. Its totient is φ = 22550172.

The previous prime is 22550149. The next prime is 22550219. The reversal of 22550173 is 37105522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19027044 + 3523129 = 4362^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 22550173 - 2⁹ = 22549661 is a prime.

It is equal to p_1421629 and since 22550173 and 1421629 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22550873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11275086 + 11275087.

It is an arithmetic number, because the mean of its divisors is an integer number (11275087).

Almost surely, 2^22550173 is an apocalyptic number.

It is an amenable number.

22550173 is a deficient number, since it is larger than the sum of its proper divisors (1).

22550173 is an equidigital number, since it uses as much as digits as its factorization.

22550173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 22550173 is about 4748.7022437714. The cubic root of 22550173 is about 282.5204955501.

Adding to 22550173 its reverse (37105522), we get a palindrome (59655695).

The spelling of 22550173 in words is "twenty-two million, five hundred fifty thousand, one hundred seventy-three".