2604559 has 2 divisors, whose sum is σ = 2604560. Its totient is φ = 2604558.

The previous prime is 2604557. The next prime is 2604583. The reversal of 2604559 is 9554062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2604559 - 2¹ = 2604557 is a prime.

Together with 2604557, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2604559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2604557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302279 + 1302280.

It is an arithmetic number, because the mean of its divisors is an integer number (1302280).

2^2604559 is an apocalyptic number.

2604559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604559 is an equidigital number, since it uses as much as digits as its factorization.

2604559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2604559 is about 1613.8646163790. The cubic root of 2604559 is about 137.5872107897.

The spelling of 2604559 in words is "two million, six hundred four thousand, five hundred fifty-nine".