513519872 has 18 divisors (see below), whose sum is σ = 1025034318. Its totient is φ = 256759808.

The previous prime is 513519871. The next prime is 513519883. The reversal of 513519872 is 278915315.

It can be written as a sum of positive squares in only one way, i.e., 498896896 + 14622976 = 22336^2 + 3824^2 .

It is not an unprimeable number, because it can be changed into a prime (513519871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002713 + ... + 1003224.

It is an arithmetic number, because the mean of its divisors is an integer number (56946351).

Almost surely, 2^513519872 is an apocalyptic number.

It is an amenable number.

513519872 is a deficient number, since it is larger than the sum of its proper divisors (511514446).

513519872 is an equidigital number, since it uses as much as digits as its factorization.

513519872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005953 (or 2005939 counting only the distinct ones).

The product of its digits is 75600, while the sum is 41.

The square root of 513519872 is about 22660.9768544959. The cubic root of 513519872 is about 800.7908180010.

The spelling of 513519872 in words is "five hundred thirteen million, five hundred nineteen thousand, eight hundred seventy-two".