2656655 has 4 divisors (see below), whose sum is σ = 3187992. Its totient is φ = 2125320.

The previous prime is 2656649. The next prime is 2656663. The reversal of 2656655 is 5566562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5566562 = 2 ⋅2783281.

It is not a de Polignac number, because 2656655 - 2⁴ = 2656639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265661 + ... + 265670.

It is an arithmetic number, because the mean of its divisors is an integer number (796998).

2^2656655 is an apocalyptic number.

2656655 is a deficient number, since it is larger than the sum of its proper divisors (531337).

2656655 is an equidigital number, since it uses as much as digits as its factorization.

2656655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531336.

The product of its digits is 54000, while the sum is 35.

The square root of 2656655 is about 1629.9248448932. The cubic root of 2656655 is about 138.4984946858.

The spelling of 2656655 in words is "two million, six hundred fifty-six thousand, six hundred fifty-five".