515165055 has 16 divisors (see below), whose sum is σ = 825914880. Its totient is φ = 274204448.

The previous prime is 515165033. The next prime is 515165071. The reversal of 515165055 is 550561515.

It is a cyclic number.

It is not a de Polignac number, because 515165055 - 2⁷ = 515164927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26595 + ... + 41684.

It is an arithmetic number, because the mean of its divisors is an integer number (51619680).

Almost surely, 2^515165055 is an apocalyptic number.

515165055 is a deficient number, since it is larger than the sum of its proper divisors (310749825).

515165055 is a wasteful number, since it uses less digits than its factorization.

515165055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68790.

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 515165055 is about 22697.2477406403. The cubic root of 515165055 is about 801.6450809628.

The spelling of 515165055 in words is "five hundred fifteen million, one hundred sixty-five thousand, fifty-five".