2265560405 has 4 divisors (see below), whose sum is σ = 2718672492. Its totient is φ = 1812448320.

The previous prime is 2265560389. The next prime is 2265560413. The reversal of 2265560405 is 5040655622.

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 1667415556 + 598144849 = 40834^2 + 24457^2 .

It is not a de Polignac number, because 2265560405 - 2⁴ = 2265560389 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 226556036 + ... + 226556045.

It is an arithmetic number, because the mean of its divisors is an integer number (679668123).

Almost surely, 2^2265560405 is an apocalyptic number.

It is an amenable number.

2265560405 is a deficient number, since it is larger than the sum of its proper divisors (453112087).

2265560405 is an equidigital number, since it uses as much as digits as its factorization.

2265560405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453112086.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2265560405 is about 47597.9033676905. The cubic root of 2265560405 is about 1313.3844859629.

The spelling of 2265560405 in words is "two billion, two hundred sixty-five million, five hundred sixty thousand, four hundred five".