2256085705 has 8 divisors (see below), whose sum is σ = 2745434304. Its totient is φ = 1779447600.

The previous prime is 2256085703. The next prime is 2256085747. The reversal of 2256085705 is 5075806522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2256085705 - 2¹ = 2256085703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256085703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3177231 + ... + 3177940.

It is an arithmetic number, because the mean of its divisors is an integer number (343179288).

Almost surely, 2^2256085705 is an apocalyptic number.

It is an amenable number.

2256085705 is a deficient number, since it is larger than the sum of its proper divisors (489348599).

2256085705 is an equidigital number, since it uses as much as digits as its factorization.

2256085705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355247.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 2256085705 is about 47498.2705474631. The cubic root of 2256085705 is about 1311.5510453361.

The spelling of 2256085705 in words is "two billion, two hundred fifty-six million, eighty-five thousand, seven hundred five".