513385215 has 16 divisors (see below), whose sum is σ = 938761728. Its totient is φ = 234690336.

The previous prime is 513385199. The next prime is 513385217. The reversal of 513385215 is 512583315.

It is not a de Polignac number, because 513385215 - 2⁴ = 513385199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513385217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2444587 + ... + 2444796.

It is an arithmetic number, because the mean of its divisors is an integer number (58672608).

Almost surely, 2^513385215 is an apocalyptic number.

513385215 is a deficient number, since it is larger than the sum of its proper divisors (425376513).

513385215 is a wasteful number, since it uses less digits than its factorization.

513385215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889398.

The product of its digits is 18000, while the sum is 33.

The square root of 513385215 is about 22658.0055388818. The cubic root of 513385215 is about 800.7208164803.

The spelling of 513385215 in words is "five hundred thirteen million, three hundred eighty-five thousand, two hundred fifteen".