520204807 has 2 divisors, whose sum is σ = 520204808. Its totient is φ = 520204806.

The previous prime is 520204801. The next prime is 520204891. The reversal of 520204807 is 708402025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520204807 - 2²³ = 511816199 is a prime.

It is a super-2 number, since 2×520204807² = 541226082451814498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520204801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260102403 + 260102404.

It is an arithmetic number, because the mean of its divisors is an integer number (260102404).

Almost surely, 2^520204807 is an apocalyptic number.

520204807 is a deficient number, since it is larger than the sum of its proper divisors (1).

520204807 is an equidigital number, since it uses as much as digits as its factorization.

520204807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 520204807 is about 22807.9987504384. The cubic root of 520204807 is about 804.2507112939.

The spelling of 520204807 in words is "five hundred twenty million, two hundred four thousand, eight hundred seven".