2556293 has 8 divisors (see below), whose sum is σ = 2672160. Its totient is φ = 2442960.

The previous prime is 2556277. The next prime is 2556331. The reversal of 2556293 is 3926552.

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 2556293 - 2⁴ = 2556277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556233) 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, 1598 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (334020).

2^2556293 is an apocalyptic number.

It is an amenable number.

2556293 is a deficient number, since it is larger than the sum of its proper divisors (115867).

2556293 is a wasteful number, since it uses less digits than its factorization.

2556293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its digits is 16200, while the sum is 32.

The square root of 2556293 is about 1598.8411428281. The cubic root of 2556293 is about 136.7320138283.

The spelling of 2556293 in words is "two million, five hundred fifty-six thousand, two hundred ninety-three".