2505404163 has 16 divisors (see below), whose sum is σ = 3637612800. Its totient is φ = 1527795360.

The previous prime is 2505404141. The next prime is 2505404227. The reversal of 2505404163 is 3614045052.

2505404163 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 2505404163 - 2²⁰ = 2504355587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2505404163.

It is not an unprimeable number, because it can be changed into a prime (2505404123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756183 + ... + 759488.

It is an arithmetic number, because the mean of its divisors is an integer number (227350800).

Almost surely, 2^2505404163 is an apocalyptic number.

2505404163 is a deficient number, since it is larger than the sum of its proper divisors (1132208637).

2505404163 is a wasteful number, since it uses less digits than its factorization.

2505404163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515722.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2505404163 is about 50054.0124565454. The cubic root of 2505404163 is about 1358.1860481635.

The spelling of 2505404163 in words is "two billion, five hundred five million, four hundred four thousand, one hundred sixty-three".