25262789 has 2 divisors, whose sum is σ = 25262790. Its totient is φ = 25262788.

The previous prime is 25262773. The next prime is 25262803. The reversal of 25262789 is 98726252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13082689 + 12180100 = 3617^2 + 3490^2 .

It is a cyclic number.

It is not a de Polignac number, because 25262789 - 2⁴ = 25262773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25262729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12631394 + 12631395.

It is an arithmetic number, because the mean of its divisors is an integer number (12631395).

Almost surely, 2^25262789 is an apocalyptic number.

It is an amenable number.

25262789 is a deficient number, since it is larger than the sum of its proper divisors (1).

25262789 is an equidigital number, since it uses as much as digits as its factorization.

25262789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 25262789 is about 5026.2102025283. The cubic root of 25262789 is about 293.4227377559.

The spelling of 25262789 in words is "twenty-five million, two hundred sixty-two thousand, seven hundred eighty-nine".