2055280 has 40 divisors (see below), whose sum is σ = 4990752. Its totient is φ = 785664.

The previous prime is 2055253. The next prime is 2055299. The reversal of 2055280 is 825502.

2055280 = 24² + 25² + ... + 183².

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282 + ... + 2398.

2^2055280 is an apocalyptic number.

2055280 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 2055280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2495376).

2055280 is an abundant number, since it is smaller than the sum of its proper divisors (2935472).

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

2055280 is a wasteful number, since it uses less digits than its factorization.

2055280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2055280 is about 1433.6247765716. The cubic root of 2055280 is about 127.1423786060.

The spelling of 2055280 in words is "two million, fifty-five thousand, two hundred eighty".