2273605565 has 64 divisors (see below), whose sum is σ = 3532750848. Its totient is φ = 1363219200.

The previous prime is 2273605561. The next prime is 2273605571. The reversal of 2273605565 is 5655063722.

It is not a de Polignac number, because 2273605565 - 2² = 2273605561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273605561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2350712 + ... + 2351678.

It is an arithmetic number, because the mean of its divisors is an integer number (55199232).

Almost surely, 2^2273605565 is an apocalyptic number.

It is an amenable number.

2273605565 is a deficient number, since it is larger than the sum of its proper divisors (1259145283).

2273605565 is a wasteful number, since it uses less digits than its factorization.

2273605565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218.

The product of its (nonzero) digits is 378000, while the sum is 41.

The square root of 2273605565 is about 47682.3401795675. The cubic root of 2273605565 is about 1314.9372887634.

The spelling of 2273605565 in words is "two billion, two hundred seventy-three million, six hundred five thousand, five hundred sixty-five".