22665005 has 48 divisors (see below), whose sum is σ = 33445440. Its totient is φ = 14572800.

The previous prime is 22664989. The next prime is 22665011. The reversal of 22665005 is 50056622.

It is a happy number.

It is not a de Polignac number, because 22665005 - 2⁴ = 22664989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 552785 + ... + 552825.

It is an arithmetic number, because the mean of its divisors is an integer number (696780).

Almost surely, 2^22665005 is an apocalyptic number.

It is an amenable number.

22665005 is a deficient number, since it is larger than the sum of its proper divisors (10780435).

22665005 is a wasteful number, since it uses less digits than its factorization.

22665005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 22665005 is about 4760.7777725914. Note that the first 5 decimals coincide. The cubic root of 22665005 is about 282.9992425073. Note that the first 3 decimals are identical.

The spelling of 22665005 in words is "twenty-two million, six hundred sixty-five thousand, five".