513553043 has 2 divisors, whose sum is σ = 513553044. Its totient is φ = 513553042.

The previous prime is 513553013. The next prime is 513553049. The reversal of 513553043 is 340355315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513553043 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 513552997 and 513553015.

It is not a weakly prime, because it can be changed into another prime (513553049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256776521 + 256776522.

It is an arithmetic number, because the mean of its divisors is an integer number (256776522).

Almost surely, 2^513553043 is an apocalyptic number.

513553043 is a deficient number, since it is larger than the sum of its proper divisors (1).

513553043 is an equidigital number, since it uses as much as digits as its factorization.

513553043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 513553043 is about 22661.7087396339. The cubic root of 513553043 is about 800.8080600863.

The spelling of 513553043 in words is "five hundred thirteen million, five hundred fifty-three thousand, forty-three".