518469089 has 2 divisors, whose sum is σ = 518469090. Its totient is φ = 518469088.

The previous prime is 518469041. The next prime is 518469109. The reversal of 518469089 is 980964815.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 515290000 + 3179089 = 22700^2 + 1783^2 .

It is a cyclic number.

It is not a de Polignac number, because 518469089 - 2⁸ = 518468833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (518462089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259234544 + 259234545.

It is an arithmetic number, because the mean of its divisors is an integer number (259234545).

Almost surely, 2^518469089 is an apocalyptic number.

It is an amenable number.

518469089 is a deficient number, since it is larger than the sum of its proper divisors (1).

518469089 is an equidigital number, since it uses as much as digits as its factorization.

518469089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 518469089 is about 22769.9163151734. The cubic root of 518469089 is about 803.3552255913.

The spelling of 518469089 in words is "five hundred eighteen million, four hundred sixty-nine thousand, eighty-nine".