25103861 has 2 divisors, whose sum is σ = 25103862. Its totient is φ = 25103860.

The previous prime is 25103839. The next prime is 25103867. The reversal of 25103861 is 16830152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13645636 + 11458225 = 3694^2 + 3385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25103861 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 25103861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25103867) 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, 12551930 + 12551931.

It is an arithmetic number, because the mean of its divisors is an integer number (12551931).

Almost surely, 2^25103861 is an apocalyptic number.

It is an amenable number.

25103861 is a deficient number, since it is larger than the sum of its proper divisors (1).

25103861 is an equidigital number, since it uses as much as digits as its factorization.

25103861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 25103861 is about 5010.3753352419. The cubic root of 25103861 is about 292.8061362458.

The spelling of 25103861 in words is "twenty-five million, one hundred three thousand, eight hundred sixty-one".