26485209 has 12 divisors (see below), whose sum is σ = 38331696. Its totient is φ = 17622072.

The previous prime is 26485189. The next prime is 26485219. The reversal of 26485209 is 90258462.

It is a happy number.

26485209 is a `hidden beast` number, since 2 + 648 + 5 + 2 + 0 + 9 = 666.

It is not a de Polignac number, because 26485209 - 2¹² = 26481113 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (26485219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2454 + ... + 7680.

It is an arithmetic number, because the mean of its divisors is an integer number (3194308).

Almost surely, 2^26485209 is an apocalyptic number.

It is an amenable number.

26485209 is a deficient number, since it is larger than the sum of its proper divisors (11846487).

26485209 is a wasteful number, since it uses less digits than its factorization.

26485209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796 (or 5793 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 26485209 is about 5146.3782410546. The cubic root of 26485209 is about 298.0811191563.

The spelling of 26485209 in words is "twenty-six million, four hundred eighty-five thousand, two hundred nine".