520852837 has 4 divisors (see below), whose sum is σ = 521052256. Its totient is φ = 520653420.

The previous prime is 520852819. The next prime is 520852879. The reversal of 520852837 is 738258025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520852837 - 2²³ = 512464229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520852837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520852337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95739 + ... + 101032.

It is an arithmetic number, because the mean of its divisors is an integer number (130263064).

Almost surely, 2^520852837 is an apocalyptic number.

It is an amenable number.

520852837 is a deficient number, since it is larger than the sum of its proper divisors (199419).

520852837 is a wasteful number, since it uses less digits than its factorization.

520852837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199418.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 520852837 is about 22822.2005293092. The cubic root of 520852837 is about 804.5845300237.

The spelling of 520852837 in words is "five hundred twenty million, eight hundred fifty-two thousand, eight hundred thirty-seven".