2556982 has 8 divisors (see below), whose sum is σ = 4037400. Its totient is φ = 1211184.

The previous prime is 2556977. The next prime is 2556991. The reversal of 2556982 is 2896552.

It is a happy number.

2556982 is nontrivially palindromic in base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33607 + ... + 33682.

It is an arithmetic number, because the mean of its divisors is an integer number (504675).

2^2556982 is an apocalyptic number.

2556982 is a deficient number, since it is larger than the sum of its proper divisors (1480418).

2556982 is a wasteful number, since it uses less digits than its factorization.

2556982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67310.

The product of its digits is 43200, while the sum is 37.

The square root of 2556982 is about 1599.0565968720. The cubic root of 2556982 is about 136.7442972265.

It can be divided in two parts, 25569 and 82, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 2556982 in words is "two million, five hundred fifty-six thousand, nine hundred eighty-two".