25752689 has 2 divisors, whose sum is σ = 25752690. Its totient is φ = 25752688.

The previous prime is 25752673. The next prime is 25752691. The reversal of 25752689 is 98625752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24671089 + 1081600 = 4967^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 25752689 - 2⁴ = 25752673 is a prime.

Together with 25752691, 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 (25752889) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12876344 + 12876345.

It is an arithmetic number, because the mean of its divisors is an integer number (12876345).

Almost surely, 2^25752689 is an apocalyptic number.

It is an amenable number.

25752689 is a deficient number, since it is larger than the sum of its proper divisors (1).

25752689 is an equidigital number, since it uses as much as digits as its factorization.

25752689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 25752689 is about 5074.7107306722. The cubic root of 25752689 is about 295.3073078359.

The spelling of 25752689 in words is "twenty-five million, seven hundred fifty-two thousand, six hundred eighty-nine".