518385055 has 8 divisors (see below), whose sum is σ = 622224000. Its totient is φ = 414600096.

The previous prime is 518385031. The next prime is 518385061. The reversal of 518385055 is 550583815.

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

It is a cyclic number.

It is not a de Polignac number, because 518385055 - 2¹³ = 518376863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 518384999 and 518385017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12021 + ... + 34369.

It is an arithmetic number, because the mean of its divisors is an integer number (77778000).

Almost surely, 2^518385055 is an apocalyptic number.

518385055 is a deficient number, since it is larger than the sum of its proper divisors (103838945).

518385055 is a wasteful number, since it uses less digits than its factorization.

518385055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26993.

The product of its (nonzero) digits is 120000, while the sum is 40.

The square root of 518385055 is about 22768.0709547383. The cubic root of 518385055 is about 803.3118203674.

The spelling of 518385055 in words is "five hundred eighteen million, three hundred eighty-five thousand, fifty-five".