25455427 has 2 divisors, whose sum is σ = 25455428. Its totient is φ = 25455426.

The previous prime is 25455403. The next prime is 25455431. The reversal of 25455427 is 72455452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25455427 - 2⁷ = 25455299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25455392 and 25455401.

It is not a weakly prime, because it can be changed into another prime (25455467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12727713 + 12727714.

It is an arithmetic number, because the mean of its divisors is an integer number (12727714).

Almost surely, 2^25455427 is an apocalyptic number.

25455427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25455427 is an equidigital number, since it uses as much as digits as its factorization.

25455427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56000, while the sum is 34.

The square root of 25455427 is about 5045.3371542445. The cubic root of 25455427 is about 294.1666685749.

The spelling of 25455427 in words is "twenty-five million, four hundred fifty-five thousand, four hundred twenty-seven".