518485 has 12 divisors (see below), whose sum is σ = 684684. Its totient is φ = 376640.

The previous prime is 518473. The next prime is 518509. The reversal of 518485 is 584815.

It can be written as a sum of positive squares in 2 ways, for example, as 352836 + 165649 = 594^2 + 407^2 .

It is not a de Polignac number, because 518485 - 2¹¹ = 516437 is a prime.

It is a congruent number.

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, 177 + ... + 1033.

It is an arithmetic number, because the mean of its divisors is an integer number (57057).

2⁵¹⁸⁴⁸⁵ is an apocalyptic number.

518485 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

518485 is a deficient number, since it is larger than the sum of its proper divisors (166199).

518485 is a wasteful number, since it uses less digits than its factorization.

518485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 873 counting only the distinct ones).

The product of its digits is 6400, while the sum is 31.

The square root of 518485 is about 720.0590253583. The cubic root of 518485 is about 80.3363443410.

The spelling of 518485 in words is "five hundred eighteen thousand, four hundred eighty-five".