25026142189 has 2 divisors, whose sum is σ = 25026142190. Its totient is φ = 25026142188.

The previous prime is 25026142139. The next prime is 25026142259. The reversal of 25026142189 is 98124162052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22609633225 + 2416508964 = 150365^2 + 49158^2 .

It is a cyclic number.

It is not a de Polignac number, because 25026142189 - 2⁷ = 25026142061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25026142129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12513071094 + 12513071095.

It is an arithmetic number, because the mean of its divisors is an integer number (12513071095).

Almost surely, 2^25026142189 is an apocalyptic number.

It is an amenable number.

25026142189 is a deficient number, since it is larger than the sum of its proper divisors (1).

25026142189 is an equidigital number, since it uses as much as digits as its factorization.

25026142189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 25026142189 in words is "twenty-five billion, twenty-six million, one hundred forty-two thousand, one hundred eighty-nine".