25147427 has 2 divisors, whose sum is σ = 25147428. Its totient is φ = 25147426.

The previous prime is 25147399. The next prime is 25147429. The reversal of 25147427 is 72474152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25147427 - 2¹⁰ = 25146403 is a prime.

Together with 25147429, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25147393 and 25147402.

It is not a weakly prime, because it can be changed into another prime (25147429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12573713 + 12573714.

It is an arithmetic number, because the mean of its divisors is an integer number (12573714).

Almost surely, 2^25147427 is an apocalyptic number.

25147427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25147427 is an equidigital number, since it uses as much as digits as its factorization.

25147427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15680, while the sum is 32.

The square root of 25147427 is about 5014.7210291301. The cubic root of 25147427 is about 292.9754198998.

The spelling of 25147427 in words is "twenty-five million, one hundred forty-seven thousand, four hundred twenty-seven".