2566522841 has 4 divisors (see below), whose sum is σ = 2567657232. Its totient is φ = 2565388452.

The previous prime is 2566522799. The next prime is 2566522883. The reversal of 2566522841 is 1482256652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2566522799) and next prime (2566522883).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2566522841 is a prime.

It is a super-2 number, since 2×2566522841² = 13174078986749422562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2566522741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563795 + ... + 568328.

It is an arithmetic number, because the mean of its divisors is an integer number (641914308).

Almost surely, 2^2566522841 is an apocalyptic number.

It is an amenable number.

2566522841 is a deficient number, since it is larger than the sum of its proper divisors (1134391).

2566522841 is a wasteful number, since it uses less digits than its factorization.

2566522841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134390.

The product of its digits is 230400, while the sum is 41.

The square root of 2566522841 is about 50660.8610368991. The cubic root of 2566522841 is about 1369.1416366411.

The spelling of 2566522841 in words is "two billion, five hundred sixty-six million, five hundred twenty-two thousand, eight hundred forty-one".