2755666 has 8 divisors (see below), whose sum is σ = 4376700. Its totient is φ = 1296768.

The previous prime is 2755663. The next prime is 2755693. The reversal of 2755666 is 6665572.

It can be written as a sum of positive squares in 2 ways, for example, as 2739025 + 16641 = 1655^2 + 129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2755661) 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, 40491 + ... + 40558.

2^2755666 is an apocalyptic number.

2755666 is a deficient number, since it is larger than the sum of its proper divisors (1621034).

2755666 is a wasteful number, since it uses less digits than its factorization.

2755666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81068.

The product of its digits is 75600, while the sum is 37.

The square root of 2755666 is about 1660.0198793990. The cubic root of 2755666 is about 140.1981208578.

It can be divided in two parts, 275566 and 6, that added together give a palindrome (275572).

The spelling of 2755666 in words is "two million, seven hundred fifty-five thousand, six hundred sixty-six".