8203412520 has 96 divisors (see below), whose sum is σ = 26737893000. Its totient is φ = 2181275136.

The previous prime is 8203412467. The next prime is 8203412527. The reversal of 8203412520 is 252143028.

It can be written as a sum of positive squares in 4 ways, for example, as 7383277476 + 820135044 = 85926^2 + 28638^2 .

It is not an unprimeable number, because it can be changed into a prime (8203412527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92994 + ... + 158286.

Almost surely, 2^8203412520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8203412520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13368946500).

8203412520 is an abundant number, since it is smaller than the sum of its proper divisors (18534480480).

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

8203412520 is a wasteful number, since it uses less digits than its factorization.

8203412520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65659 (or 65652 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 8203412520 is about 90572.6919109728. The cubic root of 8203412520 is about 2016.8093700747.

Adding to 8203412520 its reverse (252143028), we get a palindrome (8455555548).

The spelling of 8203412520 in words is "eight billion, two hundred three million, four hundred twelve thousand, five hundred twenty".