2055680 has 80 divisors (see below), whose sum is σ = 5450544. Its totient is φ = 737280.

The previous prime is 2055679. The next prime is 2055689. The reversal of 2055680 is 865502.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055689) 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, 28124 + ... + 28196.

2^2055680 is an apocalyptic number.

2055680 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 2055680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2725272).

2055680 is an abundant number, since it is smaller than the sum of its proper divisors (3394864).

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

2055680 is an equidigital number, since it uses as much as digits as its factorization.

2055680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2055680 is about 1433.7642763021. The cubic root of 2055680 is about 127.1506262499.

It can be divided in two parts, 205 and 5680, that added together give a palindrome (5885).

The spelling of 2055680 in words is "two million, fifty-five thousand, six hundred eighty".