515275 has 6 divisors (see below), whose sum is σ = 638972. Its totient is φ = 412200.

The previous prime is 515237. The next prime is 515279. The reversal of 515275 is 572515.

It is a happy number.

It is not a de Polignac number, because 515275 - 2¹⁵ = 482507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 20611 = 515275 / (5 + 1 + 5 + 2 + 7 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515279) 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 5 ways as a sum of consecutive naturals, for example, 10281 + ... + 10330.

2⁵¹⁵²⁷⁵ is an apocalyptic number.

515275 is a deficient number, since it is larger than the sum of its proper divisors (123697).

515275 is a wasteful number, since it uses less digits than its factorization.

515275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20621 (or 20616 counting only the distinct ones).

The product of its digits is 1750, while the sum is 25.

The square root of 515275 is about 717.8265807282. The cubic root of 515275 is about 80.1702105146.

The spelling of 515275 in words is "five hundred fifteen thousand, two hundred seventy-five".