513995866 has 8 divisors (see below), whose sum is σ = 811572480. Its totient is φ = 243471708.

The previous prime is 513995861. The next prime is 513995869. The reversal of 513995866 is 668599315.

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

It is not an unprimeable number, because it can be changed into a prime (513995861) 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, 6763066 + ... + 6763141.

It is an arithmetic number, because the mean of its divisors is an integer number (101446560).

Almost surely, 2^513995866 is an apocalyptic number.

513995866 is a deficient number, since it is larger than the sum of its proper divisors (297576614).

513995866 is a wasteful number, since it uses less digits than its factorization.

513995866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13526228.

The product of its digits is 1749600, while the sum is 52.

The square root of 513995866 is about 22671.4769258644. The cubic root of 513995866 is about 801.0381657238.

The spelling of 513995866 in words is "five hundred thirteen million, nine hundred ninety-five thousand, eight hundred sixty-six".