2555173163 has 4 divisors (see below), whose sum is σ = 2573824200. Its totient is φ = 2536522128.

The previous prime is 2555173147. The next prime is 2555173193. The reversal of 2555173163 is 3613715552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2555173163 - 2⁴ = 2555173147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555173193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9325313 + ... + 9325586.

It is an arithmetic number, because the mean of its divisors is an integer number (643456050).

Almost surely, 2^2555173163 is an apocalyptic number.

2555173163 is a deficient number, since it is larger than the sum of its proper divisors (18651037).

2555173163 is a wasteful number, since it uses less digits than its factorization.

2555173163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18651036.

The product of its digits is 94500, while the sum is 38.

The square root of 2555173163 is about 50548.7206860866. The cubic root of 2555173163 is about 1367.1204481684.

The spelling of 2555173163 in words is "two billion, five hundred fifty-five million, one hundred seventy-three thousand, one hundred sixty-three".