26211457 has 2 divisors, whose sum is σ = 26211458. Its totient is φ = 26211456.

The previous prime is 26211443. The next prime is 26211473. The reversal of 26211457 is 75411262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21818241 + 4393216 = 4671^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 26211457 - 2¹⁵ = 26178689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26211407) 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 as a sum of consecutive naturals, namely, 13105728 + 13105729.

It is an arithmetic number, because the mean of its divisors is an integer number (13105729).

Almost surely, 2^26211457 is an apocalyptic number.

It is an amenable number.

26211457 is a deficient number, since it is larger than the sum of its proper divisors (1).

26211457 is an equidigital number, since it uses as much as digits as its factorization.

26211457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 26211457 is about 5119.7125895894. The cubic root of 26211457 is about 297.0505682393.

The spelling of 26211457 in words is "twenty-six million, two hundred eleven thousand, four hundred fifty-seven".