2505016171 has 6 divisors (see below), whose sum is σ = 2913998460. Its totient is φ = 2147156676.

The previous prime is 2505016133. The next prime is 2505016177. The reversal of 2505016171 is 1716105052.

It is a de Polignac number, because none of the positive numbers 2^k-2505016171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505016177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25561341 + ... + 25561438.

It is an arithmetic number, because the mean of its divisors is an integer number (485666410).

Almost surely, 2^2505016171 is an apocalyptic number.

2505016171 is a deficient number, since it is larger than the sum of its proper divisors (408982289).

2505016171 is an equidigital number, since it uses as much as digits as its factorization.

2505016171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51122793 (or 51122786 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 2505016171 is about 50050.1365732402. The cubic root of 2505016171 is about 1358.1159340567.

The spelling of 2505016171 in words is "two billion, five hundred five million, sixteen thousand, one hundred seventy-one".