2566271 has 4 divisors (see below), whose sum is σ = 2677872. Its totient is φ = 2454672.

The previous prime is 2566261. The next prime is 2566279. The reversal of 2566271 is 1726652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2566271 - 2¹⁴ = 2549887 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 (2566279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55766 + ... + 55811.

It is an arithmetic number, because the mean of its divisors is an integer number (669468).

2^2566271 is an apocalyptic number.

2566271 is a deficient number, since it is larger than the sum of its proper divisors (111601).

2566271 is a wasteful number, since it uses less digits than its factorization.

2566271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111600.

The product of its digits is 5040, while the sum is 29.

The square root of 2566271 is about 1601.9584888504. The cubic root of 2566271 is about 136.9096852667.

The spelling of 2566271 in words is "two million, five hundred sixty-six thousand, two hundred seventy-one".