22231455 has 16 divisors (see below), whose sum is σ = 37117440. Its totient is φ = 11341088.

The previous prime is 22231441. The next prime is 22231459. The reversal of 22231455 is 55413222.

It is a cyclic number.

It is not a de Polignac number, because 22231455 - 2⁴ = 22231439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231459) 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, 31875 + ... + 32564.

It is an arithmetic number, because the mean of its divisors is an integer number (2319840).

Almost surely, 2^22231455 is an apocalyptic number.

22231455 is a deficient number, since it is larger than the sum of its proper divisors (14885985).

22231455 is a wasteful number, since it uses less digits than its factorization.

22231455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64470.

The product of its digits is 2400, while the sum is 24.

The square root of 22231455 is about 4715.0243901808. The cubic root of 22231455 is about 281.1831525080.

Adding to 22231455 its reverse (55413222), we get a palindrome (77644677).

The spelling of 22231455 in words is "twenty-two million, two hundred thirty-one thousand, four hundred fifty-five".