2566013 has 2 divisors, whose sum is σ = 2566014. Its totient is φ = 2566012.

The previous prime is 2566001. The next prime is 2566019. The reversal of 2566013 is 3106652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1570009 + 996004 = 1253^2 + 998^2 .

It is a cyclic number.

It is not a de Polignac number, because 2566013 - 2⁸ = 2565757 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2566013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2566019) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283006 + 1283007.

It is an arithmetic number, because the mean of its divisors is an integer number (1283007).

2^2566013 is an apocalyptic number.

It is an amenable number.

2566013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566013 is an equidigital number, since it uses as much as digits as its factorization.

2566013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2566013 is about 1601.8779603952. The cubic root of 2566013 is about 136.9050970422.

The spelling of 2566013 in words is "two million, five hundred sixty-six thousand, thirteen".