2206256837 has 2 divisors, whose sum is σ = 2206256838. Its totient is φ = 2206256836.

The previous prime is 2206256777. The next prime is 2206256851. The reversal of 2206256837 is 7386526022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2145635041 + 60621796 = 46321^2 + 7786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206256837 - 2¹⁶ = 2206191301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2206256794 and 2206256803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2206256137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103128418 + 1103128419.

It is an arithmetic number, because the mean of its divisors is an integer number (1103128419).

Almost surely, 2^2206256837 is an apocalyptic number.

It is an amenable number.

2206256837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2206256837 is an equidigital number, since it uses as much as digits as its factorization.

2206256837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2206256837 is about 46970.8083494419. The cubic root of 2206256837 is about 1301.8232478170.

The spelling of 2206256837 in words is "two billion, two hundred six million, two hundred fifty-six thousand, eight hundred thirty-seven".