520052995609 has 27 divisors (see below), whose sum is σ = 614023345173. Its totient is φ = 439178523000.

The previous prime is 520052995547. The next prime is 520052995639. The reversal of 520052995609 is 906599250025.

It is a happy number.

The square root of 520052995609 is 721147.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 520052995609 - 2²⁵ = 520019441177 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (520052995639) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 358409334 + ... + 358410784.

Almost surely, 2^520052995609 is an apocalyptic number.

520052995609 is the 721147-th square number.

520052995609 is the 360574-th centered octagonal number.

It is an amenable number.

520052995609 is a deficient number, since it is larger than the sum of its proper divisors (93970349564).

520052995609 is an frugal number, since it uses more digits than its factorization.

520052995609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058 (or 1529 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 52.

The spelling of 520052995609 in words is "five hundred twenty billion, fifty-two million, nine hundred ninety-five thousand, six hundred nine".