25466257 has 2 divisors, whose sum is σ = 25466258. Its totient is φ = 25466256.

The previous prime is 25466239. The next prime is 25466281. The reversal of 25466257 is 75266452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16248961 + 9217296 = 4031^2 + 3036^2 .

It is a cyclic number.

It is not a de Polignac number, because 25466257 - 2²³ = 17077649 is a prime.

It is not a weakly prime, because it can be changed into another prime (25466557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12733128 + 12733129.

It is an arithmetic number, because the mean of its divisors is an integer number (12733129).

Almost surely, 2^25466257 is an apocalyptic number.

It is an amenable number.

25466257 is a deficient number, since it is larger than the sum of its proper divisors (1).

25466257 is an equidigital number, since it uses as much as digits as its factorization.

25466257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 37.

The square root of 25466257 is about 5046.4103083281. The cubic root of 25466257 is about 294.2083803524.

The spelling of 25466257 in words is "twenty-five million, four hundred sixty-six thousand, two hundred fifty-seven".