515120253 has 8 divisors (see below), whose sum is σ = 705390048. Its totient is φ = 334131984.

The previous prime is 515120143. The next prime is 515120317. The reversal of 515120253 is 352021515.

It is a happy number.

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

It is not a de Polignac number, because 515120253 - 2¹⁸ = 514858109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515120653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2320251 + ... + 2320472.

It is an arithmetic number, because the mean of its divisors is an integer number (88173756).

Almost surely, 2^515120253 is an apocalyptic number.

It is an amenable number.

515120253 is a deficient number, since it is larger than the sum of its proper divisors (190269795).

515120253 is a wasteful number, since it uses less digits than its factorization.

515120253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4640763.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 515120253 is about 22696.2607713253. The cubic root of 515120253 is about 801.6218415863.

Adding to 515120253 its reverse (352021515), we get a palindrome (867141768).

The spelling of 515120253 in words is "five hundred fifteen million, one hundred twenty thousand, two hundred fifty-three".