26082221 has 4 divisors (see below), whose sum is σ = 28453344. Its totient is φ = 23711100.

The previous prime is 26082157. The next prime is 26082239. The reversal of 26082221 is 12228062.

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 a cyclic number.

It is not a de Polignac number, because 26082221 - 2⁶ = 26082157 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 (26082271) 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, 1185545 + ... + 1185566.

It is an arithmetic number, because the mean of its divisors is an integer number (7113336).

Almost surely, 2^26082221 is an apocalyptic number.

It is an amenable number.

26082221 is a deficient number, since it is larger than the sum of its proper divisors (2371123).

26082221 is a wasteful number, since it uses less digits than its factorization.

26082221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371122.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 26082221 is about 5107.0755819745. The cubic root of 26082221 is about 296.5615595056.

The spelling of 26082221 in words is "twenty-six million, eighty-two thousand, two hundred twenty-one".