2566673 has 2 divisors, whose sum is σ = 2566674. Its totient is φ = 2566672.

The previous prime is 2566667. The next prime is 2566679. The reversal of 2566673 is 3766652.

It is a balanced prime because it is at equal distance from previous prime (2566667) and next prime (2566679).

It can be written as a sum of positive squares in only one way, i.e., 2362369 + 204304 = 1537^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 2566673 - 2¹⁰ = 2565649 is a prime.

It is a d-powerful number, because it can be written as 2³ + 5⁵ + 6² + 6⁴ + 6⁸ + 7⁷ + 3¹⁰ .

It is not a weakly prime, because it can be changed into another prime (2566679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283336 + 1283337.

It is an arithmetic number, because the mean of its divisors is an integer number (1283337).

2^2566673 is an apocalyptic number.

It is an amenable number.

2566673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566673 is an equidigital number, since it uses as much as digits as its factorization.

2566673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 2566673 is about 1602.0839553532. The cubic root of 2566673 is about 136.9168337479.

The spelling of 2566673 in words is "two million, five hundred sixty-six thousand, six hundred seventy-three".