516455089 has 2 divisors, whose sum is σ = 516455090. Its totient is φ = 516455088.

The previous prime is 516455077. The next prime is 516455119. The reversal of 516455089 is 980554615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320231025 + 196224064 = 17895^2 + 14008^2 .

It is a cyclic number.

It is not a de Polignac number, because 516455089 - 2⁵ = 516455057 is a prime.

It is not a weakly prime, because it can be changed into another prime (516455389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258227544 + 258227545.

It is an arithmetic number, because the mean of its divisors is an integer number (258227545).

Almost surely, 2^516455089 is an apocalyptic number.

It is an amenable number.

516455089 is a deficient number, since it is larger than the sum of its proper divisors (1).

516455089 is an equidigital number, since it uses as much as digits as its factorization.

516455089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 516455089 is about 22725.6482635810. The cubic root of 516455089 is about 802.3136611189.

The spelling of 516455089 in words is "five hundred sixteen million, four hundred fifty-five thousand, eighty-nine".