2256601 has 2 divisors, whose sum is σ = 2256602. Its totient is φ = 2256600.

The previous prime is 2256571. The next prime is 2256613. The reversal of 2256601 is 1066522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2253001 + 3600 = 1501^2 + 60^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256601 - 2⁷ = 2256473 is a prime.

It is a Chen prime.

It is equal to p₁₆₆₅₃₁ and since 2256601 and 166531 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2256901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128300 + 1128301.

It is an arithmetic number, because the mean of its divisors is an integer number (1128301).

2^2256601 is an apocalyptic number.

It is an amenable number.

2256601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256601 is an equidigital number, since it uses as much as digits as its factorization.

2256601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2256601 is about 1502.1987218740. The cubic root of 2256601 is about 131.1650891461.

The spelling of 2256601 in words is "two million, two hundred fifty-six thousand, six hundred one".