2655856 has 40 divisors (see below), whose sum is σ = 6142464. Its totient is φ = 1087680.

The previous prime is 2655853. The next prime is 2655881. The reversal of 2655856 is 6585562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655853) 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, 2061 + ... + 3091.

2^2655856 is an apocalyptic number.

2655856 is the 1031-st heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2655856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3071232).

2655856 is an abundant number, since it is smaller than the sum of its proper divisors (3486608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2655856 is a wasteful number, since it uses less digits than its factorization.

2655856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1063 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 2655856 is about 1629.6797231358. The cubic root of 2655856 is about 138.4846086282.

The spelling of 2655856 in words is "two million, six hundred fifty-five thousand, eight hundred fifty-six".