22555971 has 12 divisors (see below), whose sum is σ = 32657248. Its totient is φ = 15002064.

The previous prime is 22555963. The next prime is 22555987. The reversal of 22555971 is 17955522.

It is not a de Polignac number, because 22555971 - 2³ = 22555963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22555901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1461 + ... + 6873.

Almost surely, 2^22555971 is an apocalyptic number.

22555971 is a deficient number, since it is larger than the sum of its proper divisors (10101277).

22555971 is a wasteful number, since it uses less digits than its factorization.

22555971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882 (or 5879 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 22555971 is about 4749.3126871159. The cubic root of 22555971 is about 282.5447069455.

The spelling of 22555971 in words is "twenty-two million, five hundred fifty-five thousand, nine hundred seventy-one".