513255559 has 2 divisors, whose sum is σ = 513255560. Its totient is φ = 513255558.

The previous prime is 513255553. The next prime is 513255563. The reversal of 513255559 is 955552315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513255559 - 2¹³ = 513247367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513255553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256627779 + 256627780.

It is an arithmetic number, because the mean of its divisors is an integer number (256627780).

Almost surely, 2^513255559 is an apocalyptic number.

513255559 is a deficient number, since it is larger than the sum of its proper divisors (1).

513255559 is an equidigital number, since it uses as much as digits as its factorization.

513255559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168750, while the sum is 40.

The square root of 513255559 is about 22655.1442061180. The cubic root of 513255559 is about 800.6534031643.

The spelling of 513255559 in words is "five hundred thirteen million, two hundred fifty-five thousand, five hundred fifty-nine".