22475305 has 4 divisors (see below), whose sum is σ = 26970372. Its totient is φ = 17980240.

The previous prime is 22475303. The next prime is 22475311. The reversal of 22475305 is 50357422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50357422 = 2 ⋅25178711.

It can be written as a sum of positive squares in 2 ways, for example, as 17372224 + 5103081 = 4168^2 + 2259^2 .

It is not a de Polignac number, because 22475305 - 2¹ = 22475303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22475303) 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 3 ways as a sum of consecutive naturals, for example, 2247526 + ... + 2247535.

It is an arithmetic number, because the mean of its divisors is an integer number (6742593).

Almost surely, 2^22475305 is an apocalyptic number.

It is an amenable number.

22475305 is a deficient number, since it is larger than the sum of its proper divisors (4495067).

22475305 is an equidigital number, since it uses as much as digits as its factorization.

22475305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495066.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 22475305 is about 4740.8126940431. The cubic root of 22475305 is about 282.2074869225.

The spelling of 22475305 in words is "twenty-two million, four hundred seventy-five thousand, three hundred five".