513032263 has 2 divisors, whose sum is σ = 513032264. Its totient is φ = 513032262.

The previous prime is 513032251. The next prime is 513032291. The reversal of 513032263 is 362230315.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513032263 - 2²¹ = 510935111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513032063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256516131 + 256516132.

It is an arithmetic number, because the mean of its divisors is an integer number (256516132).

Almost surely, 2^513032263 is an apocalyptic number.

513032263 is a deficient number, since it is larger than the sum of its proper divisors (1).

513032263 is an equidigital number, since it uses as much as digits as its factorization.

513032263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 513032263 is about 22650.2155177385. The cubic root of 513032263 is about 800.5372760664.

Adding to 513032263 its reverse (362230315), we get a palindrome (875262578).

The spelling of 513032263 in words is "five hundred thirteen million, thirty-two thousand, two hundred sixty-three".