518850385 has 16 divisors (see below), whose sum is σ = 656372160. Its totient is φ = 392644800.

The previous prime is 518850377. The next prime is 518850401. The reversal of 518850385 is 583058815.

It is not a de Polignac number, because 518850385 - 2³ = 518850377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65910 + ... + 73360.

It is an arithmetic number, because the mean of its divisors is an integer number (41023260).

Almost surely, 2^518850385 is an apocalyptic number.

It is an amenable number.

518850385 is a deficient number, since it is larger than the sum of its proper divisors (137521775).

518850385 is a wasteful number, since it uses less digits than its factorization.

518850385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8208.

The product of its (nonzero) digits is 192000, while the sum is 43.

The square root of 518850385 is about 22778.2875783058. The cubic root of 518850385 is about 803.5521136220.

The spelling of 518850385 in words is "five hundred eighteen million, eight hundred fifty thousand, three hundred eighty-five".