13543212550 has 48 divisors (see below), whose sum is σ = 28876223232. Its totient is φ = 4629319200.

The previous prime is 13543212539. The next prime is 13543212569. The reversal of 13543212550 is 5521234531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57399 + ... + 174301.

It is an arithmetic number, because the mean of its divisors is an integer number (601587984).

Almost surely, 2^13543212550 is an apocalyptic number.

13543212550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13543212550 is an abundant number, since it is smaller than the sum of its proper divisors (15333010682).

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

13543212550 is a wasteful number, since it uses less digits than its factorization.

13543212550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117253 (or 117248 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 13543212550 in words is "thirteen billion, five hundred forty-three million, two hundred twelve thousand, five hundred fifty".