2667559 has 4 divisors (see below), whose sum is σ = 2671704. Its totient is φ = 2663416.

The previous prime is 2667503. The next prime is 2667569. The reversal of 2667559 is 9557662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9557662 = 2 ⋅4778831.

It is a cyclic number.

It is not a de Polignac number, because 2667559 - 2⁹ = 2667047 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877 + ... + 2470.

It is an arithmetic number, because the mean of its divisors is an integer number (667926).

2^2667559 is an apocalyptic number.

2667559 is a deficient number, since it is larger than the sum of its proper divisors (4145).

2667559 is an equidigital number, since it uses as much as digits as its factorization.

2667559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144.

The product of its digits is 113400, while the sum is 40.

The square root of 2667559 is about 1633.2663591711. The cubic root of 2667559 is about 138.6877208796.

The spelling of 2667559 in words is "two million, six hundred sixty-seven thousand, five hundred fifty-nine".