109666325 has 6 divisors (see below), whose sum is σ = 135986274. Its totient is φ = 87733040.

The previous prime is 109666289. The next prime is 109666363. The reversal of 109666325 is 523666901.

It can be written as a sum of positive squares in 3 ways, for example, as 10484644 + 99181681 = 3238^2 + 9959^2 .

It is not a de Polignac number, because 109666325 - 2¹⁴ = 109649941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2193302 + ... + 2193351.

It is an arithmetic number, because the mean of its divisors is an integer number (22664379).

Almost surely, 2^109666325 is an apocalyptic number.

It is an amenable number.

109666325 is a deficient number, since it is larger than the sum of its proper divisors (26319949).

109666325 is an equidigital number, since it uses as much as digits as its factorization.

109666325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386663 (or 4386658 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 109666325 is about 10472.1690685359. The cubic root of 109666325 is about 478.6570171208.

The spelling of 109666325 in words is "one hundred nine million, six hundred sixty-six thousand, three hundred twenty-five".