25801141 has 2 divisors, whose sum is σ = 25801142. Its totient is φ = 25801140.

The previous prime is 25801133. The next prime is 25801199. The reversal of 25801141 is 14110852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25796241 + 4900 = 5079^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 25801141 - 2³ = 25801133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25801441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12900570 + 12900571.

It is an arithmetic number, because the mean of its divisors is an integer number (12900571).

Almost surely, 2^25801141 is an apocalyptic number.

It is an amenable number.

25801141 is a deficient number, since it is larger than the sum of its proper divisors (1).

25801141 is an equidigital number, since it uses as much as digits as its factorization.

25801141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 25801141 is about 5079.4823555162. The cubic root of 25801141 is about 295.4923922713.

Adding to 25801141 its reverse (14110852), we get a palindrome (39911993).

It can be divided in two parts, 2580 and 1141, that added together give a square (3721 = 61²).

The spelling of 25801141 in words is "twenty-five million, eight hundred one thousand, one hundred forty-one".