26221233 has 4 divisors (see below), whose sum is σ = 34961648. Its totient is φ = 17480820.

The previous prime is 26221231. The next prime is 26221241. The reversal of 26221233 is 33212262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26221233 - 2¹ = 26221231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26221231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4370203 + ... + 4370208.

It is an arithmetic number, because the mean of its divisors is an integer number (8740412).

Almost surely, 2^26221233 is an apocalyptic number.

It is an amenable number.

26221233 is a deficient number, since it is larger than the sum of its proper divisors (8740415).

26221233 is an equidigital number, since it uses as much as digits as its factorization.

26221233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8740414.

The product of its digits is 864, while the sum is 21.

The square root of 26221233 is about 5120.6672416786. The cubic root of 26221233 is about 297.0874936367.

Adding to 26221233 its reverse (33212262), we get a palindrome (59433495).

The spelling of 26221233 in words is "twenty-six million, two hundred twenty-one thousand, two hundred thirty-three".