2772556 has 18 divisors (see below), whose sum is σ = 5134220. Its totient is φ = 1306440.

The previous prime is 2772533. The next prime is 2772569. The reversal of 2772556 is 6552772.

It is a happy number.

It is a d-powerful number, because it can be written as 2⁴ + 7⁴ + 7⁴ + 2²¹ + 5² + 5⁸ + 6⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14421 + ... + 14611.

2^2772556 is an apocalyptic number.

It is an amenable number.

2772556 is a deficient number, since it is larger than the sum of its proper divisors (2361664).

2772556 is a wasteful number, since it uses less digits than its factorization.

2772556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 212 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 2772556 is about 1665.0993964325. The cubic root of 2772556 is about 140.4839712721.

The spelling of 2772556 in words is "two million, seven hundred seventy-two thousand, five hundred fifty-six".