2556382 has 4 divisors (see below), whose sum is σ = 3834576. Its totient is φ = 1278190.

The previous prime is 2556373. The next prime is 2556397. The reversal of 2556382 is 2836552.

It is a happy number.

2556382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 639094 + ... + 639097.

It is an arithmetic number, because the mean of its divisors is an integer number (958644).

2^2556382 is an apocalyptic number.

2556382 is a deficient number, since it is larger than the sum of its proper divisors (1278194).

2556382 is a wasteful number, since it uses less digits than its factorization.

2556382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278193.

The product of its digits is 14400, while the sum is 31.

The square root of 2556382 is about 1598.8689752447. The cubic root of 2556382 is about 136.7336006323.

The spelling of 2556382 in words is "two million, five hundred fifty-six thousand, three hundred eighty-two".