22665485 has 4 divisors (see below), whose sum is σ = 27198588. Its totient is φ = 18132384.

The previous prime is 22665481. The next prime is 22665493. The reversal of 22665485 is 58456622.

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 10569001 + 12096484 = 3251^2 + 3478^2 .

It is a cyclic number.

It is not a de Polignac number, because 22665485 - 2² = 22665481 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 (22665481) 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, 2266544 + ... + 2266553.

It is an arithmetic number, because the mean of its divisors is an integer number (6799647).

Almost surely, 2^22665485 is an apocalyptic number.

It is an amenable number.

22665485 is a deficient number, since it is larger than the sum of its proper divisors (4533103).

22665485 is an equidigital number, since it uses as much as digits as its factorization.

22665485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533102.

The product of its digits is 115200, while the sum is 38.

The square root of 22665485 is about 4760.8281842553. The cubic root of 22665485 is about 283.0012402814.

The spelling of 22665485 in words is "twenty-two million, six hundred sixty-five thousand, four hundred eighty-five".