513532489 has 2 divisors, whose sum is σ = 513532490. Its totient is φ = 513532488.

The previous prime is 513532471. The next prime is 513532511. The reversal of 513532489 is 984235315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 480354889 + 33177600 = 21917^2 + 5760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513532489 is a prime.

It is not a weakly prime, because it can be changed into another prime (513532189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256766244 + 256766245.

It is an arithmetic number, because the mean of its divisors is an integer number (256766245).

Almost surely, 2^513532489 is an apocalyptic number.

It is an amenable number.

513532489 is a deficient number, since it is larger than the sum of its proper divisors (1).

513532489 is an equidigital number, since it uses as much as digits as its factorization.

513532489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 513532489 is about 22661.2552388432. The cubic root of 513532489 is about 800.7973763289.

The spelling of 513532489 in words is "five hundred thirteen million, five hundred thirty-two thousand, four hundred eighty-nine".