25261361 has 2 divisors, whose sum is σ = 25261362. Its totient is φ = 25261360.

The previous prime is 25261333. The next prime is 25261391. The reversal of 25261361 is 16316252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20421361 + 4840000 = 4519^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 25261361 - 2⁶ = 25261297 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25261361.

It is not a weakly prime, because it can be changed into another prime (25261321) 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, 12630680 + 12630681.

It is an arithmetic number, because the mean of its divisors is an integer number (12630681).

Almost surely, 2^25261361 is an apocalyptic number.

It is an amenable number.

25261361 is a deficient number, since it is larger than the sum of its proper divisors (1).

25261361 is an equidigital number, since it uses as much as digits as its factorization.

25261361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 25261361 is about 5026.0681451807. The cubic root of 25261361 is about 293.4172089976.

The spelling of 25261361 in words is "twenty-five million, two hundred sixty-one thousand, three hundred sixty-one".