518499959 has 2 divisors, whose sum is σ = 518499960. Its totient is φ = 518499958.

The previous prime is 518499953. The next prime is 518499967. The reversal of 518499959 is 959994815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 518499959 - 2²⁰ = 517451383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 518499898 and 518499907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518499953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259249979 + 259249980.

It is an arithmetic number, because the mean of its divisors is an integer number (259249980).

Almost surely, 2^518499959 is an apocalyptic number.

518499959 is a deficient number, since it is larger than the sum of its proper divisors (1).

518499959 is an equidigital number, since it uses as much as digits as its factorization.

518499959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5248800, while the sum is 59.

The square root of 518499959 is about 22770.5941731875. The cubic root of 518499959 is about 803.3711693793.

The spelling of 518499959 in words is "five hundred eighteen million, four hundred ninety-nine thousand, nine hundred fifty-nine".