2556265 has 8 divisors (see below), whose sum is σ = 3083328. Its totient is φ = 2034480.

The previous prime is 2556259. The next prime is 2556277. The reversal of 2556265 is 5626552.

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

It is not a de Polignac number, because 2556265 - 2⁵ = 2556233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157 + ... + 2266.

It is an arithmetic number, because the mean of its divisors is an integer number (385416).

2^2556265 is an apocalyptic number.

It is an amenable number.

2556265 is a deficient number, since it is larger than the sum of its proper divisors (527063).

2556265 is a wasteful number, since it uses less digits than its factorization.

2556265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639.

The product of its digits is 18000, while the sum is 31.

The square root of 2556265 is about 1598.8323864621. The cubic root of 2556265 is about 136.7315146014.

The spelling of 2556265 in words is "two million, five hundred fifty-six thousand, two hundred sixty-five".