25090669 has 2 divisors, whose sum is σ = 25090670. Its totient is φ = 25090668.

The previous prime is 25090627. The next prime is 25090693. The reversal of 25090669 is 96609052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24621444 + 469225 = 4962^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 25090669 - 2⁹ = 25090157 is a prime.

It is a super-2 number, since 2×25090669² = 1259083341735122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25090069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12545334 + 12545335.

It is an arithmetic number, because the mean of its divisors is an integer number (12545335).

Almost surely, 2^25090669 is an apocalyptic number.

It is an amenable number.

25090669 is a deficient number, since it is larger than the sum of its proper divisors (1).

25090669 is an equidigital number, since it uses as much as digits as its factorization.

25090669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 25090669 is about 5009.0586940063. The cubic root of 25090669 is about 292.7548376911.

The spelling of 25090669 in words is "twenty-five million, ninety thousand, six hundred sixty-nine".