25896961 has 2 divisors, whose sum is σ = 25896962. Its totient is φ = 25896960.

The previous prime is 25896947. The next prime is 25896977. The reversal of 25896961 is 16969852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20421361 + 5475600 = 4519^2 + 2340^2 .

It is a cyclic number.

It is not a de Polignac number, because 25896961 - 2⁷ = 25896833 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (25896901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12948480 + 12948481.

It is an arithmetic number, because the mean of its divisors is an integer number (12948481).

Almost surely, 2^25896961 is an apocalyptic number.

It is an amenable number.

25896961 is a deficient number, since it is larger than the sum of its proper divisors (1).

25896961 is an equidigital number, since it uses as much as digits as its factorization.

25896961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 46.

The square root of 25896961 is about 5088.9056780412. The cubic root of 25896961 is about 295.8577391930.

The spelling of 25896961 in words is "twenty-five million, eight hundred ninety-six thousand, nine hundred sixty-one".