2558880 has 72 divisors (see below), whose sum is σ = 8737092. Its totient is φ = 681984.

The previous prime is 2558879. The next prime is 2558909. The reversal of 2558880 is 888552.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 11664 = 1596^2 + 108^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552 + ... + 2328.

2^2558880 is an apocalyptic number.

2558880 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 2558880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4368546).

2558880 is an abundant number, since it is smaller than the sum of its proper divisors (6178212).

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

2558880 is a wasteful number, since it uses less digits than its factorization.

2558880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 2558880 is about 1599.6499617104. The cubic root of 2558880 is about 136.7781231047.

The spelling of 2558880 in words is "two million, five hundred fifty-eight thousand, eight hundred eighty".