22222755 has 40 divisors (see below), whose sum is σ = 40940592. Its totient is φ = 11524032.

The previous prime is 22222747. The next prime is 22222769. The reversal of 22222755 is 55722222.

It is not a de Polignac number, because 22222755 - 2³ = 22222747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 14244 + ... + 15726.

Almost surely, 2^22222755 is an apocalyptic number.

22222755 is a deficient number, since it is larger than the sum of its proper divisors (18717837).

22222755 is a wasteful number, since it uses less digits than its factorization.

22222755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537 (or 1528 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 22222755 is about 4714.1017171885. The cubic root of 22222755 is about 281.1464685602.

Adding to 22222755 its reverse (55722222), we get a palindrome (77944977).

The spelling of 22222755 in words is "twenty-two million, two hundred twenty-two thousand, seven hundred fifty-five".