2505365 has 8 divisors (see below), whose sum is σ = 3034680. Its totient is φ = 1985472.

The previous prime is 2505361. The next prime is 2505379. The reversal of 2505365 is 5635052.

2505365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 68644 + 2436721 = 262^2 + 1561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2505365 - 2² = 2505361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505361) 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, 1754 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (379335).

2^2505365 is an apocalyptic number.

It is an amenable number.

2505365 is a deficient number, since it is larger than the sum of its proper divisors (529315).

2505365 is a wasteful number, since it uses less digits than its factorization.

2505365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 2505365 is about 1582.8344828187. The cubic root of 2505365 is about 135.8178971339.

The spelling of 2505365 in words is "two million, five hundred five thousand, three hundred sixty-five".