25861141 has 2 divisors, whose sum is σ = 25861142. Its totient is φ = 25861140.

The previous prime is 25861123. The next prime is 25861153. The reversal of 25861141 is 14116852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22043025 + 3818116 = 4695^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 25861141 - 2¹⁵ = 25828373 is a prime.

It is a super-2 number, since 2×25861141² = 1337597227643762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25861181) 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, 12930570 + 12930571.

It is an arithmetic number, because the mean of its divisors is an integer number (12930571).

Almost surely, 2^25861141 is an apocalyptic number.

It is an amenable number.

25861141 is a deficient number, since it is larger than the sum of its proper divisors (1).

25861141 is an equidigital number, since it uses as much as digits as its factorization.

25861141 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 25861141 is about 5085.3850395029. The cubic root of 25861141 is about 295.7212686873.

Adding to 25861141 its reverse (14116852), we get a palindrome (39977993).

The spelling of 25861141 in words is "twenty-five million, eight hundred sixty-one thousand, one hundred forty-one".