513312044 has 36 divisors (see below), whose sum is σ = 1046838744. Its totient is φ = 219594816.

The previous prime is 513312017. The next prime is 513312053. The reversal of 513312044 is 440213315.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 123992 + ... + 128064.

It is an arithmetic number, because the mean of its divisors is an integer number (29078854).

Almost surely, 2^513312044 is an apocalyptic number.

It is an amenable number.

513312044 is an abundant number, since it is smaller than the sum of its proper divisors (533526700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513312044 is a wasteful number, since it uses less digits than its factorization.

513312044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734 (or 4725 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 513312044 is about 22656.3907981832. The cubic root of 513312044 is about 800.6827733599.

Adding to 513312044 its reverse (440213315), we get a palindrome (953525359).

The spelling of 513312044 in words is "five hundred thirteen million, three hundred twelve thousand, forty-four".