518856097 has 2 divisors, whose sum is σ = 518856098. Its totient is φ = 518856096.

The previous prime is 518856059. The next prime is 518856101. The reversal of 518856097 is 790658815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321987136 + 196868961 = 17944^2 + 14031^2 .

It is a cyclic number.

It is not a de Polignac number, because 518856097 - 2⁷ = 518855969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 518856097.

It is not a weakly prime, because it can be changed into another prime (518866097) by changing a digit.

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 as a sum of consecutive naturals, namely, 259428048 + 259428049.

It is an arithmetic number, because the mean of its divisors is an integer number (259428049).

Almost surely, 2^518856097 is an apocalyptic number.

It is an amenable number.

518856097 is a deficient number, since it is larger than the sum of its proper divisors (1).

518856097 is an equidigital number, since it uses as much as digits as its factorization.

518856097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 49.

The square root of 518856097 is about 22778.4129605203. The cubic root of 518856097 is about 803.5550623673. Note that the first 3 decimals are identical.

The spelling of 518856097 in words is "five hundred eighteen million, eight hundred fifty-six thousand, ninety-seven".