2556339 has 8 divisors (see below), whose sum is σ = 3421632. Its totient is φ = 1697640.

The previous prime is 2556331. The next prime is 2556373. The reversal of 2556339 is 9336552.

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

It is not a de Polignac number, because 2556339 - 2³ = 2556331 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁷ + 5⁹ + 6² + 3³ + 3⁶ + 9 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (427704).

2^2556339 is an apocalyptic number.

2556339 is a deficient number, since it is larger than the sum of its proper divisors (865293).

2556339 is a wasteful number, since it uses less digits than its factorization.

2556339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297.

The product of its digits is 24300, while the sum is 33.

The square root of 2556339 is about 1598.8555281826. The cubic root of 2556339 is about 136.7328339788.

The spelling of 2556339 in words is "two million, five hundred fifty-six thousand, three hundred thirty-nine".