26057009 has 8 divisors (see below), whose sum is σ = 28678752. Its totient is φ = 23477440.

The previous prime is 26056997. The next prime is 26057021. The reversal of 26057009 is 90075062.

It is an interprime number because it is at equal distance from previous prime (26056997) and next prime (26057021).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26057009 - 2²⁴ = 9279793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26057029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9239 + ... + 11724.

It is an arithmetic number, because the mean of its divisors is an integer number (3584844).

Almost surely, 2^26057009 is an apocalyptic number.

It is an amenable number.

26057009 is a deficient number, since it is larger than the sum of its proper divisors (2621743).

26057009 is a wasteful number, since it uses less digits than its factorization.

26057009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21087.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 26057009 is about 5104.6066449825. The cubic root of 26057009 is about 296.4659730589.

The spelling of 26057009 in words is "twenty-six million, fifty-seven thousand, nine".