520850797 has 4 divisors (see below), whose sum is σ = 524168476. Its totient is φ = 517533120.

The previous prime is 520850791. The next prime is 520850821. The reversal of 520850797 is 797058025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90744676 + 430106121 = 9526^2 + 20739^2 .

It is a cyclic number.

It is not a de Polignac number, because 520850797 - 2¹¹ = 520848749 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 (520850791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658604 + ... + 1658917.

It is an arithmetic number, because the mean of its divisors is an integer number (131042119).

Almost surely, 2^520850797 is an apocalyptic number.

It is an amenable number.

520850797 is a deficient number, since it is larger than the sum of its proper divisors (3317679).

520850797 is a wasteful number, since it uses less digits than its factorization.

520850797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317678.

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 520850797 is about 22822.1558359415. The cubic root of 520850797 is about 804.5834795961.

The spelling of 520850797 in words is "five hundred twenty million, eight hundred fifty thousand, seven hundred ninety-seven".