513681288 has 32 divisors (see below), whose sum is σ = 1291636800. Its totient is φ = 170235968.

The previous prime is 513681281. The next prime is 513681331. The reversal of 513681288 is 882186315.

It is not an unprimeable number, because it can be changed into a prime (513681281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57708 + ... + 66011.

It is an arithmetic number, because the mean of its divisors is an integer number (40363650).

Almost surely, 2^513681288 is an apocalyptic number.

It is an amenable number.

513681288 is an abundant number, since it is smaller than the sum of its proper divisors (777955512).

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

513681288 is a wasteful number, since it uses less digits than its factorization.

513681288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123901 (or 123897 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 513681288 is about 22664.5381157437. The cubic root of 513681288 is about 800.8747140789.

The spelling of 513681288 in words is "five hundred thirteen million, six hundred eighty-one thousand, two hundred eighty-eight".