513688856 has 16 divisors (see below), whose sum is σ = 966751200. Its totient is φ = 255888544.

The previous prime is 513688853. The next prime is 513688891. The reversal of 513688856 is 658886315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513688853) 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, 117200 + ... + 121503.

It is an arithmetic number, because the mean of its divisors is an integer number (60421950).

Almost surely, 2^513688856 is an apocalyptic number.

It is an amenable number.

513688856 is a deficient number, since it is larger than the sum of its proper divisors (453062344).

513688856 is a wasteful number, since it uses less digits than its factorization.

513688856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238978 (or 238974 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 50.

The square root of 513688856 is about 22664.7050719836. The cubic root of 513688856 is about 800.8786471207.

The spelling of 513688856 in words is "five hundred thirteen million, six hundred eighty-eight thousand, eight hundred fifty-six".