520452664 has 8 divisors (see below), whose sum is σ = 975848760. Its totient is φ = 260226328.

The previous prime is 520452659. The next prime is 520452689. The reversal of 520452664 is 466254025.

It is a tau number, because it is divible by the number of its divisors (8).

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, 32528284 + ... + 32528299.

It is an arithmetic number, because the mean of its divisors is an integer number (121981095).

Almost surely, 2^520452664 is an apocalyptic number.

It is an amenable number.

520452664 is a deficient number, since it is larger than the sum of its proper divisors (455396096).

520452664 is a wasteful number, since it uses less digits than its factorization.

520452664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65056589 (or 65056585 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 520452664 is about 22813.4316576880. The cubic root of 520452664 is about 804.3784222231.

The spelling of 520452664 in words is "five hundred twenty million, four hundred fifty-two thousand, six hundred sixty-four".