25054513189 has 2 divisors, whose sum is σ = 25054513190. Its totient is φ = 25054513188.

The previous prime is 25054513177. The next prime is 25054513207. The reversal of 25054513189 is 98131545052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21204310689 + 3850202500 = 145617^2 + 62050^2 .

It is a cyclic number.

It is not a de Polignac number, because 25054513189 - 2²⁹ = 24517642277 is a prime.

It is a super-2 number, since 2×25054513189² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25054513129) 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, 12527256594 + 12527256595.

It is an arithmetic number, because the mean of its divisors is an integer number (12527256595).

Almost surely, 2^25054513189 is an apocalyptic number.

It is an amenable number.

25054513189 is a deficient number, since it is larger than the sum of its proper divisors (1).

25054513189 is an equidigital number, since it uses as much as digits as its factorization.

25054513189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 25054513189 in words is "twenty-five billion, fifty-four million, five hundred thirteen thousand, one hundred eighty-nine".