25824427 has 2 divisors, whose sum is σ = 25824428. Its totient is φ = 25824426.

The previous prime is 25824397. The next prime is 25824431. The reversal of 25824427 is 72442852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25824427 - 2⁷ = 25824299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25824392 and 25824401.

It is not a weakly prime, because it can be changed into another prime (25821427) 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, 12912213 + 12912214.

It is an arithmetic number, because the mean of its divisors is an integer number (12912214).

Almost surely, 2^25824427 is an apocalyptic number.

25824427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25824427 is an equidigital number, since it uses as much as digits as its factorization.

25824427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35840, while the sum is 34.

The square root of 25824427 is about 5081.7740012716. The cubic root of 25824427 is about 295.5812612979.

It can be divided in two parts, 2582442 and 7, that added together give a square (2582449 = 1607²).

The spelling of 25824427 in words is "twenty-five million, eight hundred twenty-four thousand, four hundred twenty-seven".