2559220 has 24 divisors (see below), whose sum is σ = 5507208. Its totient is φ = 998400.

The previous prime is 2559191. The next prime is 2559223. The reversal of 2559220 is 229552.

2559220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 285156 + 2274064 = 534^2 + 1508^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (229467).

2^2559220 is an apocalyptic number.

2559220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2559220 is an abundant number, since it is smaller than the sum of its proper divisors (2947988).

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

2559220 is a wasteful number, since it uses less digits than its factorization.

2559220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171 (or 3169 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2559220 is about 1599.7562314303. The cubic root of 2559220 is about 136.7841807683.

The spelling of 2559220 in words is "two million, five hundred fifty-nine thousand, two hundred twenty".