109259436025 has 6 divisors (see below), whose sum is σ = 135481700702. Its totient is φ = 87407548800.

The previous prime is 109259435993. The next prime is 109259436037. The reversal of 109259436025 is 520634952901.

It can be written as a sum of positive squares in 3 ways, for example, as 18964594944 + 90294841081 = 137712^2 + 300491^2 .

It is not a de Polignac number, because 109259436025 - 2⁵ = 109259435993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2185188696 + ... + 2185188745.

Almost surely, 2^109259436025 is an apocalyptic number.

It is an amenable number.

109259436025 is a deficient number, since it is larger than the sum of its proper divisors (26222264677).

109259436025 is an equidigital number, since it uses as much as digits as its factorization.

109259436025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370377451 (or 4370377446 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 109259436025 in words is "one hundred nine billion, two hundred fifty-nine million, four hundred thirty-six thousand, twenty-five".