2566229 has 2 divisors, whose sum is σ = 2566230. Its totient is φ = 2566228.

The previous prime is 2566219. The next prime is 2566237. The reversal of 2566229 is 9226652.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1965604 + 600625 = 1402^2 + 775^2 .

It is a cyclic number.

It is not a de Polignac number, because 2566229 - 2²⁰ = 1517653 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p₁₈₇₅₅₆ and since 2566229 and 187556 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 2566195 and 2566204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2566219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283114 + 1283115.

It is an arithmetic number, because the mean of its divisors is an integer number (1283115).

2^2566229 is an apocalyptic number.

It is an amenable number.

2566229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566229 is an equidigital number, since it uses as much as digits as its factorization.

2566229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 2566229 is about 1601.9453798429. The cubic root of 2566229 is about 136.9089383674.

The spelling of 2566229 in words is "two million, five hundred sixty-six thousand, two hundred twenty-nine".