518225 has 12 divisors (see below), whose sum is σ = 677040. Its totient is φ = 392400.

The previous prime is 518209. The next prime is 518233. The reversal of 518225 is 522815.

It is not a de Polignac number, because 518225 - 2⁴ = 518209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 518225.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 518225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71 + ... + 1020.

It is an arithmetic number, because the mean of its divisors is an integer number (56420).

2⁵¹⁸²²⁵ is an apocalyptic number.

It is an amenable number.

518225 is a deficient number, since it is larger than the sum of its proper divisors (158815).

518225 is a wasteful number, since it uses less digits than its factorization.

518225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1115 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 518225 is about 719.8784619642. The cubic root of 518225 is about 80.3229135815.

It can be divided in two parts, 5 and 18225, that multiplied together give a cube (91125 = 45³).

The spelling of 518225 in words is "five hundred eighteen thousand, two hundred twenty-five".