25835749 has 2 divisors, whose sum is σ = 25835750. Its totient is φ = 25835748.

The previous prime is 25835743. The next prime is 25835779. The reversal of 25835749 is 94753852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25826724 + 9025 = 5082^2 + 95^2 .

It is a cyclic number.

It is not a de Polignac number, because 25835749 - 2⁹ = 25835237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25835743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12917874 + 12917875.

It is an arithmetic number, because the mean of its divisors is an integer number (12917875).

Almost surely, 2^25835749 is an apocalyptic number.

It is an amenable number.

25835749 is a deficient number, since it is larger than the sum of its proper divisors (1).

25835749 is an equidigital number, since it uses as much as digits as its factorization.

25835749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 25835749 is about 5082.8878602621. The cubic root of 25835749 is about 295.6244514410.

The spelling of 25835749 in words is "twenty-five million, eight hundred thirty-five thousand, seven hundred forty-nine".