10504320520 has 32 divisors (see below), whose sum is σ = 23765316120. Its totient is φ = 4178511360.

The previous prime is 10504320509. The next prime is 10504320527. The reversal of 10504320520 is 2502340501.

It can be written as a sum of positive squares in 4 ways, for example, as 4142981956 + 6361338564 = 64366^2 + 79758^2 .

It is a super-3 number, since 3×10504320520³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 10504320491 and 10504320500.

It is not an unprimeable number, because it can be changed into a prime (10504320527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718197 + ... + 732676.

Almost surely, 2^10504320520 is an apocalyptic number.

10504320520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10504320520 is an abundant number, since it is smaller than the sum of its proper divisors (13260995600).

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

10504320520 is a wasteful number, since it uses less digits than its factorization.

10504320520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451065 (or 1451061 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 10504320520 in words is "ten billion, five hundred four million, three hundred twenty thousand, five hundred twenty".