518241425 has 48 divisors (see below), whose sum is σ = 721953792. Its totient is φ = 366508800.

The previous prime is 518241419. The next prime is 518241439. The reversal of 518241425 is 524142815.

It is not a de Polignac number, because 518241425 - 2¹² = 518237329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 518241391 and 518241400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 853472 + ... + 854078.

It is an arithmetic number, because the mean of its divisors is an integer number (15040704).

Almost surely, 2^518241425 is an apocalyptic number.

It is an amenable number.

518241425 is a deficient number, since it is larger than the sum of its proper divisors (203712367).

518241425 is a wasteful number, since it uses less digits than its factorization.

518241425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 733 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The square root of 518241425 is about 22764.9165383930. The cubic root of 518241425 is about 803.2376217684.

The spelling of 518241425 in words is "five hundred eighteen million, two hundred forty-one thousand, four hundred twenty-five".