2506505 has 16 divisors (see below), whose sum is σ = 3154944. Its totient is φ = 1909440.

The previous prime is 2506501. The next prime is 2506523. The reversal of 2506505 is 5056052.

2506505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2506505 - 2² = 2506501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2506501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15887 + ... + 16043.

It is an arithmetic number, because the mean of its divisors is an integer number (197184).

2^2506505 is an apocalyptic number.

It is an amenable number.

2506505 is a deficient number, since it is larger than the sum of its proper divisors (648439).

2506505 is a wasteful number, since it uses less digits than its factorization.

2506505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 2506505 is about 1583.1945553216. The cubic root of 2506505 is about 135.8384941227.

The spelling of 2506505 in words is "two million, five hundred six thousand, five hundred five".