2766556 has 24 divisors (see below), whose sum is σ = 5284944. Its totient is φ = 1259520.

The previous prime is 2766551. The next prime is 2766581. The reversal of 2766556 is 6556672.

It is a super-2 number, since 2×2766556² = 15307664202272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2766551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3996 + ... + 4636.

It is an arithmetic number, because the mean of its divisors is an integer number (220206).

2^2766556 is an apocalyptic number.

2766556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2766556 is a deficient number, since it is larger than the sum of its proper divisors (2518388).

2766556 is a wasteful number, since it uses less digits than its factorization.

2766556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 739 counting only the distinct ones).

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

The square root of 2766556 is about 1663.2967263841. The cubic root of 2766556 is about 140.3825591223.

The spelling of 2766556 in words is "two million, seven hundred sixty-six thousand, five hundred fifty-six".