520531030 has 16 divisors (see below), whose sum is σ = 986269680. Its totient is φ = 197253792.

The previous prime is 520531027. The next prime is 520531093. The reversal of 520531030 is 30135025.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 520530989 and 520531007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369629 + ... + 1370008.

It is an arithmetic number, because the mean of its divisors is an integer number (61641855).

Almost surely, 2^520531030 is an apocalyptic number.

520531030 is a deficient number, since it is larger than the sum of its proper divisors (465738650).

520531030 is a wasteful number, since it uses less digits than its factorization.

520531030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739663.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 520531030 is about 22815.1491338540. The cubic root of 520531030 is about 804.4187926930.

Adding to 520531030 its reverse (30135025), we get a palindrome (550666055).

The spelling of 520531030 in words is "five hundred twenty million, five hundred thirty-one thousand, thirty".