513501305 has 8 divisors (see below), whose sum is σ = 616398144. Its totient is φ = 410670000.

The previous prime is 513501301. The next prime is 513501311. The reversal of 513501305 is 503105315.

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

It is not a de Polignac number, because 513501305 - 2² = 513501301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513501301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2930 + ... + 32180.

It is an arithmetic number, because the mean of its divisors is an integer number (77049768).

Almost surely, 2^513501305 is an apocalyptic number.

It is an amenable number.

513501305 is a deficient number, since it is larger than the sum of its proper divisors (102896839).

513501305 is a wasteful number, since it uses less digits than its factorization.

513501305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32767.

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

The square root of 513501305 is about 22660.5671817808. The cubic root of 513501305 is about 800.7811666625.

The spelling of 513501305 in words is "five hundred thirteen million, five hundred one thousand, three hundred five".