26722133 has 4 divisors (see below), whose sum is σ = 26786028. Its totient is φ = 26658240.

The previous prime is 26722109. The next prime is 26722139. The reversal of 26722133 is 33122762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33122762 = 2 ⋅16561381.

It can be written as a sum of positive squares in 2 ways, for example, as 2140369 + 24581764 = 1463^2 + 4958^2 .

It is a cyclic number.

It is not a de Polignac number, because 26722133 - 2¹⁰ = 26721109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26722139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31316 + ... + 32157.

It is an arithmetic number, because the mean of its divisors is an integer number (6696507).

Almost surely, 2^26722133 is an apocalyptic number.

It is an amenable number.

26722133 is a deficient number, since it is larger than the sum of its proper divisors (63895).

26722133 is an equidigital number, since it uses as much as digits as its factorization.

26722133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63894.

The product of its digits is 3024, while the sum is 26.

The square root of 26722133 is about 5169.3455098300. The cubic root of 26722133 is about 298.9673122284.

Adding to 26722133 its reverse (33122762), we get a palindrome (59844895).

The spelling of 26722133 in words is "twenty-six million, seven hundred twenty-two thousand, one hundred thirty-three".