2578259 has 2 divisors, whose sum is σ = 2578260. Its totient is φ = 2578258.

The previous prime is 2578253. The next prime is 2578267. The reversal of 2578259 is 9528752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2578259 - 2⁸ = 2578003 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (2578253) 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, 1289129 + 1289130.

It is an arithmetic number, because the mean of its divisors is an integer number (1289130).

2^2578259 is an apocalyptic number.

2578259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2578259 is an equidigital number, since it uses as much as digits as its factorization.

2578259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 38.

The square root of 2578259 is about 1605.6957993344. The cubic root of 2578259 is about 137.1225394111.

The spelling of 2578259 in words is "two million, five hundred seventy-eight thousand, two hundred fifty-nine".