518481983 has 4 divisors (see below), whose sum is σ = 518595168. Its totient is φ = 518368800.

The previous prime is 518481961. The next prime is 518482001. The reversal of 518481983 is 389184815.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 518481983 - 2⁶ = 518481919 is a prime.

It is a super-2 number, since 2×518481983² = 537647133391224578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518481583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49418 + ... + 58983.

It is an arithmetic number, because the mean of its divisors is an integer number (129648792).

Almost surely, 2^518481983 is an apocalyptic number.

518481983 is a deficient number, since it is larger than the sum of its proper divisors (113185).

518481983 is a wasteful number, since it uses less digits than its factorization.

518481983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113184.

The product of its digits is 276480, while the sum is 47.

The square root of 518481983 is about 22770.1994501585. The cubic root of 518481983 is about 803.3618851825.

The spelling of 518481983 in words is "five hundred eighteen million, four hundred eighty-one thousand, nine hundred eighty-three".