2606505 has 16 divisors (see below), whose sum is σ = 4549824. Its totient is φ = 1263680.

The previous prime is 2606503. The next prime is 2606509. The reversal of 2606505 is 5056062.

It is not a de Polignac number, because 2606505 - 2¹ = 2606503 is a prime.

2606505 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2606503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7734 + ... + 8063.

It is an arithmetic number, because the mean of its divisors is an integer number (284364).

2^2606505 is an apocalyptic number.

It is an amenable number.

2606505 is a deficient number, since it is larger than the sum of its proper divisors (1943319).

2606505 is a wasteful number, since it uses less digits than its factorization.

2606505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2606505 is about 1614.4674044402. The cubic root of 2606505 is about 137.6214684200.

The spelling of 2606505 in words is "two million, six hundred six thousand, five hundred five".