515350013 has 4 divisors (see below), whose sum is σ = 515396928. Its totient is φ = 515303100.

The previous prime is 515350009. The next prime is 515350049. The reversal of 515350013 is 310053515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 515350013 - 2² = 515350009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515350063) 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, 2870 + ... + 32232.

It is an arithmetic number, because the mean of its divisors is an integer number (128849232).

Almost surely, 2^515350013 is an apocalyptic number.

It is an amenable number.

515350013 is a deficient number, since it is larger than the sum of its proper divisors (46915).

515350013 is a wasteful number, since it uses less digits than its factorization.

515350013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46914.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 515350013 is about 22701.3218337611. The cubic root of 515350013 is about 801.7410068081.

The spelling of 515350013 in words is "five hundred fifteen million, three hundred fifty thousand, thirteen".