22855805 has 16 divisors (see below), whose sum is σ = 31987200. Its totient is φ = 15671376.

The previous prime is 22855801. The next prime is 22855831. The reversal of 22855805 is 50855822.

It is not a de Polignac number, because 22855805 - 2² = 22855801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22855801) 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, 4949 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (1999200).

Almost surely, 2^22855805 is an apocalyptic number.

It is an amenable number.

22855805 is a deficient number, since it is larger than the sum of its proper divisors (9131395).

22855805 is an equidigital number, since it uses as much as digits as its factorization.

22855805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13353 (or 13339 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 22855805 is about 4780.7745188411. The cubic root of 22855805 is about 283.7911452945.

The spelling of 22855805 in words is "twenty-two million, eight hundred fifty-five thousand, eight hundred five".