513425530 has 8 divisors (see below), whose sum is σ = 924165972. Its totient is φ = 205370208.

The previous prime is 513425513. The next prime is 513425531. The reversal of 513425530 is 35524315.

It can be written as a sum of positive squares in 2 ways, for example, as 503957601 + 9467929 = 22449^2 + 3077^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (513425531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25671267 + ... + 25671286.

Almost surely, 2^513425530 is an apocalyptic number.

513425530 is a deficient number, since it is larger than the sum of its proper divisors (410740442).

513425530 is a wasteful number, since it uses less digits than its factorization.

513425530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51342560.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 513425530 is about 22658.8951628273. The cubic root of 513425530 is about 800.7417755404.

Adding to 513425530 its reverse (35524315), we get a palindrome (548949845).

The spelling of 513425530 in words is "five hundred thirteen million, four hundred twenty-five thousand, five hundred thirty".