2655880 has 32 divisors (see below), whose sum is σ = 6071040. Its totient is φ = 1045440.

The previous prime is 2655853. The next prime is 2655881. The reversal of 2655880 is 885562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2185 + ... + 3175.

It is an arithmetic number, because the mean of its divisors is an integer number (189720).

2^2655880 is an apocalyptic number.

2655880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2655880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3035520).

2655880 is an abundant number, since it is smaller than the sum of its proper divisors (3415160).

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

2655880 is a wasteful number, since it uses less digits than its factorization.

2655880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 2655880 is about 1629.6870865292. The cubic root of 2655880 is about 138.4850257719.

The spelling of 2655880 in words is "two million, six hundred fifty-five thousand, eight hundred eighty".