518245564 has 6 divisors (see below), whose sum is σ = 906929744. Its totient is φ = 259122780.

The previous prime is 518245517. The next prime is 518245601. The reversal of 518245564 is 465542815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64780692 + ... + 64780699.

Almost surely, 2^518245564 is an apocalyptic number.

It is an amenable number.

518245564 is a deficient number, since it is larger than the sum of its proper divisors (388684180).

518245564 is a wasteful number, since it uses less digits than its factorization.

518245564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129561395 (or 129561393 counting only the distinct ones).

The product of its digits is 192000, while the sum is 40.

The square root of 518245564 is about 22765.0074456390. The cubic root of 518245564 is about 803.2397601486.

The spelling of 518245564 in words is "five hundred eighteen million, two hundred forty-five thousand, five hundred sixty-four".