25675789 has 2 divisors, whose sum is σ = 25675790. Its totient is φ = 25675788.

The previous prime is 25675787. The next prime is 25675823. The reversal of 25675789 is 98757652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23687689 + 1988100 = 4867^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 25675789 - 2¹ = 25675787 is a prime.

It is a super-2 number, since 2×25675789² = 1318492281545042, which contains 22 as substring.

Together with 25675787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25675787) 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, 12837894 + 12837895.

It is an arithmetic number, because the mean of its divisors is an integer number (12837895).

Almost surely, 2^25675789 is an apocalyptic number.

It is an amenable number.

25675789 is a deficient number, since it is larger than the sum of its proper divisors (1).

25675789 is an equidigital number, since it uses as much as digits as its factorization.

25675789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 49.

The square root of 25675789 is about 5067.1282794103. The cubic root of 25675789 is about 295.0130761225.

The spelling of 25675789 in words is "twenty-five million, six hundred seventy-five thousand, seven hundred eighty-nine".