25004129 has 2 divisors, whose sum is σ = 25004130. Its totient is φ = 25004128.

The previous prime is 25004117. The next prime is 25004131. The reversal of 25004129 is 92140052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17430625 + 7573504 = 4175^2 + 2752^2 .

It is a cyclic number.

It is not a de Polignac number, because 25004129 - 2⁸ = 25003873 is a prime.

Together with 25004131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25004149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12502064 + 12502065.

It is an arithmetic number, because the mean of its divisors is an integer number (12502065).

Almost surely, 2^25004129 is an apocalyptic number.

It is an amenable number.

25004129 is a deficient number, since it is larger than the sum of its proper divisors (1).

25004129 is an equidigital number, since it uses as much as digits as its factorization.

25004129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 25004129 is about 5000.4128829528. The cubic root of 25004129 is about 292.4178706275.

The spelling of 25004129 in words is "twenty-five million, four thousand, one hundred twenty-nine".