2505018 has 32 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 765440.

The previous prime is 2505007. The next prime is 2505043. The reversal of 2505018 is 8105052.

2505018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2504985 and 2505003.

It is an unprimeable number.

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, 3883 + ... + 4481.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^2505018 is an apocalyptic number.

2505018 is an abundant number, since it is smaller than the sum of its proper divisors (2938182).

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

2505018 is a wasteful number, since it uses less digits than its factorization.

2505018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2505018 is about 1582.7248655404. The cubic root of 2505018 is about 135.8116264593.

The spelling of 2505018 in words is "two million, five hundred five thousand, eighteen".