2256017 has 2 divisors, whose sum is σ = 2256018. Its totient is φ = 2256016.

The previous prime is 2256013. The next prime is 2256029. The reversal of 2256017 is 7106522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1336336 + 919681 = 1156^2 + 959^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256017 - 2² = 2256013 is a prime.

It is a super-2 number, since 2×2256017² = 10179225408578, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2255983 and 2256001.

It is not a weakly prime, because it can be changed into another prime (2256013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128008 + 1128009.

It is an arithmetic number, because the mean of its divisors is an integer number (1128009).

2^2256017 is an apocalyptic number.

It is an amenable number.

2256017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256017 is an equidigital number, since it uses as much as digits as its factorization.

2256017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2256017 is about 1502.0043275570. The cubic root of 2256017 is about 131.1537731565.

The spelling of 2256017 in words is "two million, two hundred fifty-six thousand, seventeen".