2566231 has 4 divisors (see below), whose sum is σ = 2628864. Its totient is φ = 2503600.

The previous prime is 2566229. The next prime is 2566237. The reversal of 2566231 is 1326652.

2566231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2566231 - 2¹ = 2566229 is a prime.

It is a super-2 number, since 2×2566231² = 13171083090722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2566196 and 2566205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31255 + ... + 31336.

It is an arithmetic number, because the mean of its divisors is an integer number (657216).

2^2566231 is an apocalyptic number.

2566231 is a deficient number, since it is larger than the sum of its proper divisors (62633).

2566231 is an equidigital number, since it uses as much as digits as its factorization.

2566231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62632.

The product of its digits is 2160, while the sum is 25.

The square root of 2566231 is about 1601.9460040838. The cubic root of 2566231 is about 136.9089739342.

The spelling of 2566231 in words is "two million, five hundred sixty-six thousand, two hundred thirty-one".