2605601 has 4 divisors (see below), whose sum is σ = 2718912. Its totient is φ = 2492292.

The previous prime is 2605579. The next prime is 2605609. The reversal of 2605601 is 1065062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1065062 = 2 ⋅532531.

It is a cyclic number.

It is not a de Polignac number, because 2605601 - 2¹⁴ = 2589217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2605609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56621 + ... + 56666.

It is an arithmetic number, because the mean of its divisors is an integer number (679728).

2^2605601 is an apocalyptic number.

It is an amenable number.

2605601 is a deficient number, since it is larger than the sum of its proper divisors (113311).

2605601 is a wasteful number, since it uses less digits than its factorization.

2605601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113310.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2605601 is about 1614.1874116719. The cubic root of 2605601 is about 137.6055564110.

The spelling of 2605601 in words is "two million, six hundred five thousand, six hundred one".