22135555 has 16 divisors (see below), whose sum is σ = 29594880. Its totient is φ = 15781248.

The previous prime is 22135549. The next prime is 22135559. The reversal of 22135555 is 55553122.

It is a cyclic number.

It is not a de Polignac number, because 22135555 - 2⁷ = 22135427 is a prime.

It is a super-3 number, since 3×22135555³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22135559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3987 + ... + 7756.

It is an arithmetic number, because the mean of its divisors is an integer number (1849680).

Almost surely, 2^22135555 is an apocalyptic number.

22135555 is a deficient number, since it is larger than the sum of its proper divisors (7459325).

22135555 is a wasteful number, since it uses less digits than its factorization.

22135555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11790.

The product of its digits is 7500, while the sum is 28.

The square root of 22135555 is about 4704.8437806159. The cubic root of 22135555 is about 280.7782557641.

Adding to 22135555 its reverse (55553122), we get a palindrome (77688677).

The spelling of 22135555 in words is "twenty-two million, one hundred thirty-five thousand, five hundred fifty-five".