26456281 has 2 divisors, whose sum is σ = 26456282. Its totient is φ = 26456280.

The previous prime is 26456273. The next prime is 26456327. The reversal of 26456281 is 18265462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18705625 + 7750656 = 4325^2 + 2784^2 .

It is a cyclic number.

It is not a de Polignac number, because 26456281 - 2³ = 26456273 is a prime.

It is a super-2 number, since 2×26456281² = 1399869608701922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26456201) 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, 13228140 + 13228141.

It is an arithmetic number, because the mean of its divisors is an integer number (13228141).

Almost surely, 2^26456281 is an apocalyptic number.

It is an amenable number.

26456281 is a deficient number, since it is larger than the sum of its proper divisors (1).

26456281 is an equidigital number, since it uses as much as digits as its factorization.

26456281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 34.

The square root of 26456281 is about 5143.5669530006. The cubic root of 26456281 is about 297.9725550149.

The spelling of 26456281 in words is "twenty-six million, four hundred fifty-six thousand, two hundred eighty-one".