513573253 has 2 divisors, whose sum is σ = 513573254. Its totient is φ = 513573252.

The previous prime is 513573227. The next prime is 513573259. The reversal of 513573253 is 352375315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352613284 + 160959969 = 18778^2 + 12687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513573253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513573259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256786626 + 256786627.

It is an arithmetic number, because the mean of its divisors is an integer number (256786627).

Almost surely, 2^513573253 is an apocalyptic number.

It is an amenable number.

513573253 is a deficient number, since it is larger than the sum of its proper divisors (1).

513573253 is an equidigital number, since it uses as much as digits as its factorization.

513573253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47250, while the sum is 34.

The square root of 513573253 is about 22662.1546416046. The cubic root of 513573253 is about 800.8185647582.

The spelling of 513573253 in words is "five hundred thirteen million, five hundred seventy-three thousand, two hundred fifty-three".