22222553 has 4 divisors (see below), whose sum is σ = 23529780. Its totient is φ = 20915328.

The previous prime is 22222547. The next prime is 22222561. The reversal of 22222553 is 35522222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9168784 + 13053769 = 3028^2 + 3613^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222553 - 2⁴ = 22222537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22222513) 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 3 ways as a sum of consecutive naturals, for example, 653588 + ... + 653621.

It is an arithmetic number, because the mean of its divisors is an integer number (5882445).

Almost surely, 2^22222553 is an apocalyptic number.

It is an amenable number.

22222553 is a deficient number, since it is larger than the sum of its proper divisors (1307227).

22222553 is a wasteful number, since it uses less digits than its factorization.

22222553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307226.

The product of its digits is 2400, while the sum is 23.

The square root of 22222553 is about 4714.0802920612. The cubic root of 22222553 is about 281.1456167042.

Adding to 22222553 its reverse (35522222), we get a palindrome (57744775).

The spelling of 22222553 in words is "twenty-two million, two hundred twenty-two thousand, five hundred fifty-three".