520791799 has 16 divisors (see below), whose sum is σ = 584672256. Its totient is φ = 459774400.

The previous prime is 520791797. The next prime is 520791809. The reversal of 520791799 is 997197025.

It is a cyclic number.

It is not a de Polignac number, because 520791799 - 2¹ = 520791797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520791797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99834 + ... + 104920.

It is an arithmetic number, because the mean of its divisors is an integer number (36542016).

Almost surely, 2^520791799 is an apocalyptic number.

520791799 is a deficient number, since it is larger than the sum of its proper divisors (63880457).

520791799 is a wasteful number, since it uses less digits than its factorization.

520791799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5366.

The product of its (nonzero) digits is 357210, while the sum is 49.

The square root of 520791799 is about 22820.8632395885. The cubic root of 520791799 is about 804.5530994253.

The spelling of 520791799 in words is "five hundred twenty million, seven hundred ninety-one thousand, seven hundred ninety-nine".