2565679 has 2 divisors, whose sum is σ = 2565680. Its totient is φ = 2565678.

The previous prime is 2565671. The next prime is 2565701. The reversal of 2565679 is 9765652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2565679 - 2³ = 2565671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282839 + 1282840.

It is an arithmetic number, because the mean of its divisors is an integer number (1282840).

2^2565679 is an apocalyptic number.

2565679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565679 is an equidigital number, since it uses as much as digits as its factorization.

2565679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 2565679 is about 1601.7737043665. The cubic root of 2565679 is about 136.8991567908.

The spelling of 2565679 in words is "two million, five hundred sixty-five thousand, six hundred seventy-nine".