520660652 has 12 divisors (see below), whose sum is σ = 915927936. Its totient is φ = 258966960.

The previous prime is 520660607. The next prime is 520660687. The reversal of 520660652 is 256066025.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339983 + ... + 341510.

It is an arithmetic number, because the mean of its divisors is an integer number (76327328).

Almost surely, 2^520660652 is an apocalyptic number.

It is an amenable number.

520660652 is a deficient number, since it is larger than the sum of its proper divisors (395267284).

520660652 is a wasteful number, since it uses less digits than its factorization.

520660652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681688 (or 681686 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 520660652 is about 22817.9896572858. The cubic root of 520660652 is about 804.4855589457.

The spelling of 520660652 in words is "five hundred twenty million, six hundred sixty thousand, six hundred fifty-two".