518552473 has 2 divisors, whose sum is σ = 518552474. Its totient is φ = 518552472.

The previous prime is 518552471. The next prime is 518552491. The reversal of 518552473 is 374255815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 492307344 + 26245129 = 22188^2 + 5123^2 .

It is a cyclic number.

It is not a de Polignac number, because 518552473 - 2¹ = 518552471 is a prime.

Together with 518552471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (518552471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259276236 + 259276237.

It is an arithmetic number, because the mean of its divisors is an integer number (259276237).

Almost surely, 2^518552473 is an apocalyptic number.

It is an amenable number.

518552473 is a deficient number, since it is larger than the sum of its proper divisors (1).

518552473 is an equidigital number, since it uses as much as digits as its factorization.

518552473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 40.

The square root of 518552473 is about 22771.7472539988. The cubic root of 518552473 is about 803.3982904418.

The spelling of 518552473 in words is "five hundred eighteen million, five hundred fifty-two thousand, four hundred seventy-three".