13403552520 has 32 divisors (see below), whose sum is σ = 40210657920. Its totient is φ = 3574280640.

The previous prime is 13403552507. The next prime is 13403552521. The reversal of 13403552520 is 2525530431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13403552521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55848016 + ... + 55848255.

It is an arithmetic number, because the mean of its divisors is an integer number (1256583060).

Almost surely, 2^13403552520 is an apocalyptic number.

13403552520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13403552520 is an abundant number, since it is smaller than the sum of its proper divisors (26807105400).

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

13403552520 is a wasteful number, since it uses less digits than its factorization.

13403552520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111696285 (or 111696281 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 13403552520 in words is "thirteen billion, four hundred three million, five hundred fifty-two thousand, five hundred twenty".