520245330 has 32 divisors (see below), whose sum is σ = 1362097728. Its totient is φ = 126120000.

The previous prime is 520245311. The next prime is 520245331. The reversal of 520245330 is 33542025.

It is a self number, because there is not a number n which added to its sum of digits gives 520245330.

It is not an unprimeable number, because it can be changed into a prime (520245331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787921 + ... + 788580.

It is an arithmetic number, because the mean of its divisors is an integer number (42565554).

Almost surely, 2^520245330 is an apocalyptic number.

520245330 is an abundant number, since it is smaller than the sum of its proper divisors (841852398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520245330 is a wasteful number, since it uses less digits than its factorization.

520245330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576522.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 520245330 is about 22808.8870837663. The cubic root of 520245330 is about 804.2715939699.

Adding to 520245330 its reverse (33542025), we get a palindrome (553787355).

The spelling of 520245330 in words is "five hundred twenty million, two hundred forty-five thousand, three hundred thirty".