5172105565 has 32 divisors (see below), whose sum is σ = 7293100032. Its totient is φ = 3481896000.

The previous prime is 5172105563. The next prime is 5172105581. The reversal of 5172105565 is 5655012715.

It is not a de Polignac number, because 5172105565 - 2¹ = 5172105563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172105563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26731 + ... + 105160.

It is an arithmetic number, because the mean of its divisors is an integer number (227909376).

Almost surely, 2^5172105565 is an apocalyptic number.

5172105565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5172105565 is a deficient number, since it is larger than the sum of its proper divisors (2120994467).

5172105565 is a wasteful number, since it uses less digits than its factorization.

5172105565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131961.

The product of its (nonzero) digits is 52500, while the sum is 37.

The square root of 5172105565 is about 71917.3523219536. The cubic root of 5172105565 is about 1729.3748022116.

The spelling of 5172105565 in words is "five billion, one hundred seventy-two million, one hundred five thousand, five hundred sixty-five".