2556829 has 4 divisors (see below), whose sum is σ = 2789280. Its totient is φ = 2324380.

The previous prime is 2556821. The next prime is 2556839. The reversal of 2556829 is 9286552.

It is a happy number.

2556829 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2556829 - 2³ = 2556821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556821) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 116209 + ... + 116230.

It is an arithmetic number, because the mean of its divisors is an integer number (697320).

2^2556829 is an apocalyptic number.

It is an amenable number.

2556829 is a deficient number, since it is larger than the sum of its proper divisors (232451).

2556829 is a wasteful number, since it uses less digits than its factorization.

2556829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232450.

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

The square root of 2556829 is about 1599.0087554482. The cubic root of 2556829 is about 136.7415697539.

The spelling of 2556829 in words is "two million, five hundred fifty-six thousand, eight hundred twenty-nine".