513055771 has 2 divisors, whose sum is σ = 513055772. Its totient is φ = 513055770.

The previous prime is 513055729. The next prime is 513055787. The reversal of 513055771 is 177550315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513055771 - 2⁷ = 513055643 is a prime.

It is not a weakly prime, because it can be changed into another prime (513055721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256527885 + 256527886.

It is an arithmetic number, because the mean of its divisors is an integer number (256527886).

Almost surely, 2^513055771 is an apocalyptic number.

513055771 is a deficient number, since it is larger than the sum of its proper divisors (1).

513055771 is an equidigital number, since it uses as much as digits as its factorization.

513055771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18375, while the sum is 34.

The square root of 513055771 is about 22650.7344472536. The cubic root of 513055771 is about 800.5495032005.

The spelling of 513055771 in words is "five hundred thirteen million, fifty-five thousand, seven hundred seventy-one".