2506579 has 2 divisors, whose sum is σ = 2506580. Its totient is φ = 2506578.

The previous prime is 2506571. The next prime is 2506583. The reversal of 2506579 is 9756052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2506579 - 2³ = 2506571 is a prime.

It is not a weakly prime, because it can be changed into another prime (2506571) 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 as a sum of consecutive naturals, namely, 1253289 + 1253290.

It is an arithmetic number, because the mean of its divisors is an integer number (1253290).

2^2506579 is an apocalyptic number.

2506579 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506579 is an equidigital number, since it uses as much as digits as its factorization.

2506579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 2506579 is about 1583.2179256186. The cubic root of 2506579 is about 135.8398309043.

The spelling of 2506579 in words is "two million, five hundred six thousand, five hundred seventy-nine".