2655566 has 4 divisors (see below), whose sum is σ = 3983352. Its totient is φ = 1327782.

The previous prime is 2655563. The next prime is 2655571. The reversal of 2655566 is 6655562.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663890 + ... + 663893.

It is an arithmetic number, because the mean of its divisors is an integer number (995838).

2^2655566 is an apocalyptic number.

2655566 is a deficient number, since it is larger than the sum of its proper divisors (1327786).

2655566 is a wasteful number, since it uses less digits than its factorization.

2655566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327785.

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

The square root of 2655566 is about 1629.5907461691. The cubic root of 2655566 is about 138.4795679435.

It can be divided in two parts, 265556 and 6, that added together give a palindrome (265562).

The spelling of 2655566 in words is "two million, six hundred fifty-five thousand, five hundred sixty-six".