520078799 has 2 divisors, whose sum is σ = 520078800. Its totient is φ = 520078798.

The previous prime is 520078781. The next prime is 520078813. The reversal of 520078799 is 997870025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520078799 - 2⁸ = 520078543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520078729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260039399 + 260039400.

It is an arithmetic number, because the mean of its divisors is an integer number (260039400).

Almost surely, 2^520078799 is an apocalyptic number.

520078799 is a deficient number, since it is larger than the sum of its proper divisors (1).

520078799 is an equidigital number, since it uses as much as digits as its factorization.

520078799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 520078799 is about 22805.2362189038. The cubic root of 520078799 is about 804.1857687905.

It can be divided in two parts, 52007 and 8799, that added together give a palindrome (60806).

The spelling of 520078799 in words is "five hundred twenty million, seventy-eight thousand, seven hundred ninety-nine".