225359305865 has 4 divisors (see below), whose sum is σ = 270431167044. Its totient is φ = 180287444688.

The previous prime is 225359305849. The next prime is 225359305877. The reversal of 225359305865 is 568503953522.

225359305865 is digitally balanced in base 11, because in such base it contains all the possibile digits an equal number of times.

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 22768395664 + 202590910201 = 150892^2 + 450101^2 .

It is a cyclic number.

It is not a de Polignac number, because 225359305865 - 2⁴ = 225359305849 is a prime.

It is a Duffinian number.

225359305865 is strictly pandigital in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22535930582 + ... + 22535930591.

It is an arithmetic number, because the mean of its divisors is an integer number (67607791761).

Almost surely, 2^225359305865 is an apocalyptic number.

It is an amenable number.

225359305865 is a deficient number, since it is larger than the sum of its proper divisors (45071861179).

225359305865 is an equidigital number, since it uses as much as digits as its factorization.

225359305865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45071861178.

The product of its (nonzero) digits is 9720000, while the sum is 53.

The spelling of 225359305865 in words is "two hundred twenty-five billion, three hundred fifty-nine million, three hundred five thousand, eight hundred sixty-five".