2555560 has 32 divisors (see below), whose sum is σ = 6572160. Its totient is φ = 876096.

The previous prime is 2555551. The next prime is 2555561. The reversal of 2555560 is 655552.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555561) 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 7 ways as a sum of consecutive naturals, for example, 4284 + ... + 4843.

It is an arithmetic number, because the mean of its divisors is an integer number (205380).

2^2555560 is an apocalyptic number.

2555560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555560 is an abundant number, since it is smaller than the sum of its proper divisors (4016600).

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

2555560 is a wasteful number, since it uses less digits than its factorization.

2555560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9145 (or 9141 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 2555560 is about 1598.6118978664. The cubic root of 2555560 is about 136.7189435807.

The spelling of 2555560 in words is "two million, five hundred fifty-five thousand, five hundred sixty".