513143253 has 24 divisors (see below), whose sum is σ = 849571008. Its totient is φ = 292367232.

The previous prime is 513143251. The next prime is 513143273. The reversal of 513143253 is 352341315.

513143253 is a `hidden beast` number, since 513 + 143 + 2 + 5 + 3 = 666.

It is not a de Polignac number, because 513143253 - 2¹ = 513143251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513143251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10125 + ... + 33597.

It is an arithmetic number, because the mean of its divisors is an integer number (35398792).

Almost surely, 2^513143253 is an apocalyptic number.

It is an amenable number.

513143253 is a deficient number, since it is larger than the sum of its proper divisors (336427755).

513143253 is a wasteful number, since it uses less digits than its factorization.

513143253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23833 (or 23830 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 513143253 is about 22652.6654723015. The cubic root of 513143253 is about 800.5950016275.

Adding to 513143253 its reverse (352341315), we get a palindrome (865484568).

It can be divided in two parts, 5131 and 43253, that added together give a palindrome (48384).

The spelling of 513143253 in words is "five hundred thirteen million, one hundred forty-three thousand, two hundred fifty-three".