25145129 has 2 divisors, whose sum is σ = 25145130. Its totient is φ = 25145128.

The previous prime is 25145053. The next prime is 25145143. The reversal of 25145129 is 92154152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19009600 + 6135529 = 4360^2 + 2477^2 .

It is a cyclic number.

It is not a de Polignac number, because 25145129 - 2²⁴ = 8367913 is a prime.

It is not a weakly prime, because it can be changed into another prime (25145149) 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, 12572564 + 12572565.

It is an arithmetic number, because the mean of its divisors is an integer number (12572565).

Almost surely, 2^25145129 is an apocalyptic number.

It is an amenable number.

25145129 is a deficient number, since it is larger than the sum of its proper divisors (1).

25145129 is an equidigital number, since it uses as much as digits as its factorization.

25145129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 25145129 is about 5014.4918984878. The cubic root of 25145129 is about 292.9664954875.

The spelling of 25145129 in words is "twenty-five million, one hundred forty-five thousand, one hundred twenty-nine".