2555982 has 64 divisors (see below), whose sum is σ = 6693120. Its totient is φ = 712800.

The previous prime is 2555957. The next prime is 2555989. The reversal of 2555982 is 2895552.

2555982 is a `hidden beast` number, since 25 + 559 + 82 = 666.

Its product of digits (36000) is a multiple of the sum of its prime divisors (360).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7557 + ... + 7887.

It is an arithmetic number, because the mean of its divisors is an integer number (104580).

2^2555982 is an apocalyptic number.

2555982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3346560).

2555982 is an abundant number, since it is smaller than the sum of its proper divisors (4137138).

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

2555982 is a wasteful number, since it uses less digits than its factorization.

2555982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 360 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 2555982 is about 1598.7438819273. The cubic root of 2555982 is about 136.7264686396.

The spelling of 2555982 in words is "two million, five hundred fifty-five thousand, nine hundred eighty-two".