10520405504 has 80 divisors (see below), whose sum is σ = 24417487776. Its totient is φ = 4434739200.

The previous prime is 10520405503. The next prime is 10520405543. The reversal of 10520405504 is 40550402501.

It is a super-2 number, since 2×10520405504² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520405503) 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 7 ways as a sum of consecutive naturals, for example, 194564 + ... + 242684.

Almost surely, 2^10520405504 is an apocalyptic number.

10520405504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10520405504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12208743888).

10520405504 is an abundant number, since it is smaller than the sum of its proper divisors (13897082272).

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

10520405504 is an frugal number, since it uses more digits than its factorization.

10520405504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48207 (or 48191 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The spelling of 10520405504 in words is "ten billion, five hundred twenty million, four hundred five thousand, five hundred four".