2566237 has 2 divisors, whose sum is σ = 2566238. Its totient is φ = 2566236.

The previous prime is 2566229. The next prime is 2566241. The reversal of 2566237 is 7326652.

2566237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2414916 + 151321 = 1554^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 2566237 - 2³ = 2566229 is a prime.

It is a d-powerful number, because it can be written as 2² + 5² + 6⁶ + 6⁸ + 2¹⁴ + 3² + 7⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 2566199 and 2566208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2566637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283118 + 1283119.

It is an arithmetic number, because the mean of its divisors is an integer number (1283119).

2^2566237 is an apocalyptic number.

It is an amenable number.

2566237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566237 is an equidigital number, since it uses as much as digits as its factorization.

2566237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 2566237 is about 1601.9478768050. The cubic root of 2566237 is about 136.9090806345.

The spelling of 2566237 in words is "two million, five hundred sixty-six thousand, two hundred thirty-seven".