22855855 has 16 divisors (see below), whose sum is σ = 30132000. Its totient is φ = 16504960.

The previous prime is 22855853. The next prime is 22855867. The reversal of 22855855 is 55855822.

It is a happy number.

It is not a de Polignac number, because 22855855 - 2¹ = 22855853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22855853) 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 15 ways as a sum of consecutive naturals, for example, 6801 + ... + 9589.

It is an arithmetic number, because the mean of its divisors is an integer number (1883250).

Almost surely, 2^22855855 is an apocalyptic number.

22855855 is a deficient number, since it is larger than the sum of its proper divisors (7276145).

22855855 is a wasteful number, since it uses less digits than its factorization.

22855855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954.

The product of its digits is 160000, while the sum is 40.

The square root of 22855855 is about 4780.7797481164. The cubic root of 22855855 is about 283.7913522375.

The spelling of 22855855 in words is "twenty-two million, eight hundred fifty-five thousand, eight hundred fifty-five".