2505045 has 32 divisors (see below), whose sum is σ = 4292352. Its totient is φ = 1244672.

The previous prime is 2505043. The next prime is 2505067. The reversal of 2505045 is 5405052.

2505045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2505045 - 2¹ = 2505043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505043) 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 31 ways as a sum of consecutive naturals, for example, 18217 + ... + 18353.

It is an arithmetic number, because the mean of its divisors is an integer number (134136).

2^2505045 is an apocalyptic number.

It is an amenable number.

2505045 is a deficient number, since it is larger than the sum of its proper divisors (1787307).

2505045 is a wasteful number, since it uses less digits than its factorization.

2505045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 2505045 is about 1582.7333951111. The cubic root of 2505045 is about 135.8121144000.

The spelling of 2505045 in words is "two million, five hundred five thousand, forty-five".