2256247165 has 16 divisors (see below), whose sum is σ = 2718489600. Its totient is φ = 1797688192.

The previous prime is 2256247163. The next prime is 2256247171. The reversal of 2256247165 is 5617426522.

It is a cyclic number.

It is not a de Polignac number, because 2256247165 - 2¹ = 2256247163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256247163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2045004 + ... + 2046106.

It is an arithmetic number, because the mean of its divisors is an integer number (169905600).

Almost surely, 2^2256247165 is an apocalyptic number.

It is an amenable number.

2256247165 is a deficient number, since it is larger than the sum of its proper divisors (462242435).

2256247165 is a wasteful number, since it uses less digits than its factorization.

2256247165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396.

The product of its digits is 201600, while the sum is 40.

The square root of 2256247165 is about 47499.9701578854. The cubic root of 2256247165 is about 1311.5823322652.

The spelling of 2256247165 in words is "two billion, two hundred fifty-six million, two hundred forty-seven thousand, one hundred sixty-five".