518201020 has 12 divisors (see below), whose sum is σ = 1088222184. Its totient is φ = 207280400.

The previous prime is 518200967. The next prime is 518201069. The reversal of 518201020 is 20102815.

It is a congruent number.

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, 12955006 + ... + 12955045.

It is an arithmetic number, because the mean of its divisors is an integer number (90685182).

Almost surely, 2^518201020 is an apocalyptic number.

It is an amenable number.

518201020 is an abundant number, since it is smaller than the sum of its proper divisors (570021164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518201020 is a wasteful number, since it uses less digits than its factorization.

518201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25910060 (or 25910058 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 518201020 is about 22764.0290809865. The cubic root of 518201020 is about 803.2167462600.

Adding to 518201020 its reverse (20102815), we get a palindrome (538303835).

The spelling of 518201020 in words is "five hundred eighteen million, two hundred one thousand, twenty".