538513 has 2 divisors, whose sum is σ = 538514. Its totient is φ = 538512.

The previous prime is 538511. The next prime is 538519. The reversal of 538513 is 315835.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501264 + 37249 = 708^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 538513 - 2¹ = 538511 is a prime.

Together with 538511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (538511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269256 + 269257.

It is an arithmetic number, because the mean of its divisors is an integer number (269257).

2⁵³⁸⁵¹³ is an apocalyptic number.

It is an amenable number.

538513 is a deficient number, since it is larger than the sum of its proper divisors (1).

538513 is an equidigital number, since it uses as much as digits as its factorization.

538513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 538513 is about 733.8344499954. The cubic root of 538513 is about 81.3577127639.

The spelling of 538513 in words is "five hundred thirty-eight thousand, five hundred thirteen".