518170252 has 12 divisors (see below), whose sum is σ = 907408656. Its totient is φ = 258910640.

The previous prime is 518170229. The next prime is 518170271. The reversal of 518170252 is 252071815.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36823 + ... + 48910.

It is an arithmetic number, because the mean of its divisors is an integer number (75617388).

Almost surely, 2^518170252 is an apocalyptic number.

It is an amenable number.

518170252 is a deficient number, since it is larger than the sum of its proper divisors (389238404).

518170252 is a wasteful number, since it uses less digits than its factorization.

518170252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87248 (or 87246 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 518170252 is about 22763.3532679173. The cubic root of 518170252 is about 803.2008490432.

The spelling of 518170252 in words is "five hundred eighteen million, one hundred seventy thousand, two hundred fifty-two".