2272565857 has 4 divisors (see below), whose sum is σ = 2273567940. Its totient is φ = 2271563776.

The previous prime is 2272565849. The next prime is 2272565873. The reversal of 2272565857 is 7585652722.

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 2017716561 + 254849296 = 44919^2 + 15964^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272565857 - 2³ = 2272565849 is a prime.

It is a super-3 number, since 3×2272565857³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2272565857.

It is not an unprimeable number, because it can be changed into a prime (2272565557) 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, 497632 + ... + 502177.

It is an arithmetic number, because the mean of its divisors is an integer number (568391985).

Almost surely, 2^2272565857 is an apocalyptic number.

It is an amenable number.

2272565857 is a deficient number, since it is larger than the sum of its proper divisors (1002083).

2272565857 is an equidigital number, since it uses as much as digits as its factorization.

2272565857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002082.

The product of its digits is 2352000, while the sum is 49.

The square root of 2272565857 is about 47671.4364897891. The cubic root of 2272565857 is about 1314.7368202082.

The spelling of 2272565857 in words is "two billion, two hundred seventy-two million, five hundred sixty-five thousand, eight hundred fifty-seven".