25466281 has 2 divisors, whose sum is σ = 25466282. Its totient is φ = 25466280.

The previous prime is 25466257. The next prime is 25466293. The reversal of 25466281 is 18266452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19009600 + 6456681 = 4360^2 + 2541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25466281 is a prime.

It is a super-2 number, since 2×25466281² = 1297062935941922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25466081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12733140 + 12733141.

It is an arithmetic number, because the mean of its divisors is an integer number (12733141).

Almost surely, 2^25466281 is an apocalyptic number.

It is an amenable number.

25466281 is a deficient number, since it is larger than the sum of its proper divisors (1).

25466281 is an equidigital number, since it uses as much as digits as its factorization.

25466281 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 25466281 is about 5046.4126862555. The cubic root of 25466281 is about 294.2084727753.

The spelling of 25466281 in words is "twenty-five million, four hundred sixty-six thousand, two hundred eighty-one".