2505306 has 16 divisors (see below), whose sum is σ = 5082048. Its totient is φ = 823200.

The previous prime is 2505301. The next prime is 2505311. The reversal of 2505306 is 6035052.

2505306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2505301) and next prime (2505311).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2505301) 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 7 ways as a sum of consecutive naturals, for example, 2515 + ... + 3366.

It is an arithmetic number, because the mean of its divisors is an integer number (317628).

2^2505306 is an apocalyptic number.

2505306 is an abundant number, since it is smaller than the sum of its proper divisors (2576742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505306 is a wasteful number, since it uses less digits than its factorization.

2505306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5957.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2505306 is about 1582.8158452581. The cubic root of 2505306 is about 135.8168309794.

The spelling of 2505306 in words is "two million, five hundred five thousand, three hundred six".