2516605 has 16 divisors (see below), whose sum is σ = 3717504. Its totient is φ = 1592640.

The previous prime is 2516603. The next prime is 2516659. The reversal of 2516605 is 5066152.

It is not a de Polignac number, because 2516605 - 2¹ = 2516603 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 2516605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516603) 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 in 15 ways as a sum of consecutive naturals, for example, 2311 + ... + 3220.

It is an arithmetic number, because the mean of its divisors is an integer number (232344).

2^2516605 is an apocalyptic number.

It is an amenable number.

2516605 is a deficient number, since it is larger than the sum of its proper divisors (1200899).

2516605 is a wasteful number, since it uses less digits than its factorization.

2516605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5556.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2516605 is about 1586.3811017533. The cubic root of 2516605 is about 136.0207040279.

The spelling of 2516605 in words is "two million, five hundred sixteen thousand, six hundred five".