517166055 has 24 divisors (see below), whose sum is σ = 1024481952. Its totient is φ = 236418624.

The previous prime is 517166053. The next prime is 517166183. The reversal of 517166055 is 550661715.

It is not a de Polignac number, because 517166055 - 2¹ = 517166053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517166053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 820584 + ... + 821213.

It is an arithmetic number, because the mean of its divisors is an integer number (42686748).

Almost surely, 2^517166055 is an apocalyptic number.

517166055 is a deficient number, since it is larger than the sum of its proper divisors (507315897).

517166055 is a wasteful number, since it uses less digits than its factorization.

517166055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641815 (or 1641812 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 517166055 is about 22741.2852539165. The cubic root of 517166055 is about 802.6816545132.

It can be divided in two parts, 5171660 and 55, that added together give a palindrome (5171715).

The spelling of 517166055 in words is "five hundred seventeen million, one hundred sixty-six thousand, fifty-five".