520420253002 has 8 divisors (see below), whose sum is σ = 840678870276. Its totient is φ = 240193962912.

The previous prime is 520420252999. The next prime is 520420253051. The reversal of 520420253002 is 200352024025.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 515726495881 + 4693757121 = 718141^2 + 68511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10008081763 + ... + 10008081814.

Almost surely, 2^520420253002 is an apocalyptic number.

520420253002 is a deficient number, since it is larger than the sum of its proper divisors (320258617274).

520420253002 is a wasteful number, since it uses less digits than its factorization.

520420253002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20016163592.

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 520420253002 its reverse (200352024025), we get a palindrome (720772277027).

The spelling of 520420253002 in words is "five hundred twenty billion, four hundred twenty million, two hundred fifty-three thousand, two".