25838669 has 2 divisors, whose sum is σ = 25838670. Its totient is φ = 25838668.

The previous prime is 25838663. The next prime is 25838707. The reversal of 25838669 is 96683852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19909444 + 5929225 = 4462^2 + 2435^2 .

It is a cyclic number.

It is not a de Polignac number, because 25838669 - 2⁴ = 25838653 is a prime.

It is a super-2 number, since 2×25838669² = 1335273631383122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25838663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12919334 + 12919335.

It is an arithmetic number, because the mean of its divisors is an integer number (12919335).

Almost surely, 2^25838669 is an apocalyptic number.

It is an amenable number.

25838669 is a deficient number, since it is larger than the sum of its proper divisors (1).

25838669 is an equidigital number, since it uses as much as digits as its factorization.

25838669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 25838669 is about 5083.1750904331. The cubic root of 25838669 is about 295.6355883464.

The spelling of 25838669 in words is "twenty-five million, eight hundred thirty-eight thousand, six hundred sixty-nine".