2505545 has 16 divisors (see below), whose sum is σ = 3639168. Its totient is φ = 1616640.

The previous prime is 2505541. The next prime is 2505557. The reversal of 2505545 is 5455052.

2505545 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 2505545 - 2² = 2505541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505541) 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, 1511 + ... + 2700.

It is an arithmetic number, because the mean of its divisors is an integer number (227448).

2^2505545 is an apocalyptic number.

It is an amenable number.

2505545 is a deficient number, since it is larger than the sum of its proper divisors (1133623).

2505545 is a wasteful number, since it uses less digits than its factorization.

2505545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240.

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 2505545 is about 1582.8913418172. The cubic root of 2505545 is about 135.8211497053.

The spelling of 2505545 in words is "two million, five hundred five thousand, five hundred forty-five".