25114861 has 2 divisors, whose sum is σ = 25114862. Its totient is φ = 25114860.

The previous prime is 25114853. The next prime is 25114889. The reversal of 25114861 is 16841152.

It is an a-pointer prime, because the next prime (25114889) can be obtained adding 25114861 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24950025 + 164836 = 4995^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 25114861 - 2³ = 25114853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25114361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12557430 + 12557431.

It is an arithmetic number, because the mean of its divisors is an integer number (12557431).

Almost surely, 2^25114861 is an apocalyptic number.

It is an amenable number.

25114861 is a deficient number, since it is larger than the sum of its proper divisors (1).

25114861 is an equidigital number, since it uses as much as digits as its factorization.

25114861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 28.

The square root of 25114861 is about 5011.4729371713. The cubic root of 25114861 is about 292.8488972268.

The spelling of 25114861 in words is "twenty-five million, one hundred fourteen thousand, eight hundred sixty-one".