513365263 has 2 divisors, whose sum is σ = 513365264. Its totient is φ = 513365262.

The previous prime is 513365231. The next prime is 513365291. The reversal of 513365263 is 362563315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513365263 - 2⁵ = 513365231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513365663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256682631 + 256682632.

It is an arithmetic number, because the mean of its divisors is an integer number (256682632).

Almost surely, 2^513365263 is an apocalyptic number.

513365263 is a deficient number, since it is larger than the sum of its proper divisors (1).

513365263 is an equidigital number, since it uses as much as digits as its factorization.

513365263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 34.

The square root of 513365263 is about 22657.5652487199. The cubic root of 513365263 is about 800.7104433802.

The spelling of 513365263 in words is "five hundred thirteen million, three hundred sixty-five thousand, two hundred sixty-three".