26625009 has 8 divisors (see below), whose sum is σ = 37588320. Its totient is φ = 16705856.

The previous prime is 26624981. The next prime is 26625013. The reversal of 26625009 is 90052662.

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 26625009 - 2⁷ = 26624881 is a prime.

It is a super-2 number, since 2×26625009² = 1417782208500162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26625019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260979 + ... + 261080.

It is an arithmetic number, because the mean of its divisors is an integer number (4698540).

Almost surely, 2^26625009 is an apocalyptic number.

It is an amenable number.

26625009 is a deficient number, since it is larger than the sum of its proper divisors (10963311).

26625009 is a wasteful number, since it uses less digits than its factorization.

26625009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522079.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 26625009 is about 5159.9427322403. The cubic root of 26625009 is about 298.6046646369.

The spelling of 26625009 in words is "twenty-six million, six hundred twenty-five thousand, nine".