2555380 has 24 divisors (see below), whose sum is σ = 5449248. Its totient is φ = 1006368.

The previous prime is 2555363. The next prime is 2555429. The reversal of 2555380 is 835552.

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, 387 + ... + 2293.

It is an arithmetic number, because the mean of its divisors is an integer number (227052).

2^2555380 is an apocalyptic number.

2555380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555380 is an abundant number, since it is smaller than the sum of its proper divisors (2893868).

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

2555380 is a wasteful number, since it uses less digits than its factorization.

2555380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2555380 is about 1598.5555980322. Note that the first 4 decimals coincide. The cubic root of 2555380 is about 136.7157335879.

The spelling of 2555380 in words is "two million, five hundred fifty-five thousand, three hundred eighty".