2055648 has 144 divisors (see below), whose sum is σ = 6894720. Its totient is φ = 532224.

The previous prime is 2055637. The next prime is 2055649. The reversal of 2055648 is 8465502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89365 + ... + 89387.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2^2055648 is an apocalyptic number.

2055648 is a gapful number since it is divisible by the number (28) 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 2055648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3447360).

2055648 is an abundant number, since it is smaller than the sum of its proper divisors (4839072).

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

2055648 is a wasteful number, since it uses less digits than its factorization.

2055648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2055648 is about 1433.7531168231. The cubic root of 2055648 is about 127.1499664777.

The spelling of 2055648 in words is "two million, fifty-five thousand, six hundred forty-eight".