520302005 has 10 divisors (see below), whose sum is σ = 630606030. Its totient is φ = 412120400.

The previous prime is 520301993. The next prime is 520302011. The reversal of 520302005 is 500203025.

It can be written as a sum of positive squares in 5 ways, for example, as 220284964 + 300017041 = 14842^2 + 17321^2 .

It is not a de Polignac number, because 520302005 - 2⁴ = 520301989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5151455 + ... + 5151555.

It is an arithmetic number, because the mean of its divisors is an integer number (63060603).

Almost surely, 2^520302005 is an apocalyptic number.

It is an amenable number.

520302005 is a deficient number, since it is larger than the sum of its proper divisors (110304025).

520302005 is an frugal number, since it uses more digits than its factorization.

520302005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 520302005 is about 22810.1294384754. The cubic root of 520302005 is about 804.3007984207.

The spelling of 520302005 in words is "five hundred twenty million, three hundred two thousand, five".