2556959 has 8 divisors (see below), whose sum is σ = 2717760. Its totient is φ = 2401056.

The previous prime is 2556943. The next prime is 2556977. The reversal of 2556959 is 9596552.

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

It is a cyclic number.

It is not a de Polignac number, because 2556959 - 2⁴ = 2556943 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 (2556259) 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, 119 + ... + 2264.

It is an arithmetic number, because the mean of its divisors is an integer number (339720).

2^2556959 is an apocalyptic number.

2556959 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2556959 is a deficient number, since it is larger than the sum of its proper divisors (160801).

2556959 is a wasteful number, since it uses less digits than its factorization.

2556959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449.

The product of its digits is 121500, while the sum is 41.

The square root of 2556959 is about 1599.0494051154. The cubic root of 2556959 is about 136.7438872212.

The spelling of 2556959 in words is "two million, five hundred fifty-six thousand, nine hundred fifty-nine".