515055 has 8 divisors (see below), whose sum is σ = 824112. Its totient is φ = 274688.

The previous prime is 515041. The next prime is 515087. The reversal of 515055 is 550515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 515055 - 2⁹ = 514543 is a prime.

515055 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17154 + ... + 17183.

It is an arithmetic number, because the mean of its divisors is an integer number (103014).

2⁵¹⁵⁰⁵⁵ is an apocalyptic number.

515055 is a deficient number, since it is larger than the sum of its proper divisors (309057).

515055 is a wasteful number, since it uses less digits than its factorization.

515055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34345.

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 515055 is about 717.6733240131. The cubic root of 515055 is about 80.1587991601.

The spelling of 515055 in words is "five hundred fifteen thousand, fifty-five".