26561222 has 8 divisors (see below), whose sum is σ = 40346400. Its totient is φ = 13112424.

The previous prime is 26561201. The next prime is 26561231. The reversal of 26561222 is 22216562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 26561191 and 26561200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83897 + ... + 84212.

It is an arithmetic number, because the mean of its divisors is an integer number (5043300).

Almost surely, 2^26561222 is an apocalyptic number.

26561222 is a deficient number, since it is larger than the sum of its proper divisors (13785178).

26561222 is a wasteful number, since it uses less digits than its factorization.

26561222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168190.

The product of its digits is 2880, while the sum is 26.

The square root of 26561222 is about 5153.7580463192. The cubic root of 26561222 is about 298.3660127395.

Adding to 26561222 its reverse (22216562), we get a palindrome (48777784).

The spelling of 26561222 in words is "twenty-six million, five hundred sixty-one thousand, two hundred twenty-two".