225109338809 has 4 divisors (see below), whose sum is σ = 225117772404. Its totient is φ = 225100905216.

The previous prime is 225109338799. The next prime is 225109338827. The reversal of 225109338809 is 908833901522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48137676409 + 176971662400 = 219403^2 + 420680^2 .

It is a cyclic number.

It is not a de Polignac number, because 225109338809 - 2¹⁶ = 225109273273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225109338109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4176632 + ... + 4230185.

It is an arithmetic number, because the mean of its divisors is an integer number (56279443101).

Almost surely, 2^225109338809 is an apocalyptic number.

It is an amenable number.

225109338809 is a deficient number, since it is larger than the sum of its proper divisors (8433595).

225109338809 is an equidigital number, since it uses as much as digits as its factorization.

225109338809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8433594.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 225109338809 in words is "two hundred twenty-five billion, one hundred nine million, three hundred thirty-eight thousand, eight hundred nine".