26125109 has 4 divisors (see below), whose sum is σ = 26515104. Its totient is φ = 25735116.

The previous prime is 26125097. The next prime is 26125111. The reversal of 26125109 is 90152162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26125109 - 2²⁴ = 9347893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26125009) 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 3 ways as a sum of consecutive naturals, for example, 194897 + ... + 195030.

It is an arithmetic number, because the mean of its divisors is an integer number (6628776).

Almost surely, 2^26125109 is an apocalyptic number.

It is an amenable number.

26125109 is a deficient number, since it is larger than the sum of its proper divisors (389995).

26125109 is an equidigital number, since it uses as much as digits as its factorization.

26125109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389994.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 26125109 is about 5111.2727377826. The cubic root of 26125109 is about 296.7240196877.

The spelling of 26125109 in words is "twenty-six million, one hundred twenty-five thousand, one hundred nine".