22265955 has 64 divisors (see below), whose sum is σ = 42301440. Its totient is φ = 11088000.

The previous prime is 22265953. The next prime is 22265981. The reversal of 22265955 is 55956222.

It is not a de Polignac number, because 22265955 - 2¹ = 22265953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22265953) 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 63 ways as a sum of consecutive naturals, for example, 220405 + ... + 220505.

It is an arithmetic number, because the mean of its divisors is an integer number (660960).

Almost surely, 2^22265955 is an apocalyptic number.

22265955 is a deficient number, since it is larger than the sum of its proper divisors (20035485).

22265955 is a wasteful number, since it uses less digits than its factorization.

22265955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 203 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 22265955 is about 4718.6814895689. The cubic root of 22265955 is about 281.3285291826.

It can be divided in two parts, 22265 and 955, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22265955 in words is "twenty-two million, two hundred sixty-five thousand, nine hundred fifty-five".