13554023550 has 96 divisors (see below), whose sum is σ = 34573537152. Its totient is φ = 3512100480.

The previous prime is 13554023503. The next prime is 13554023563. The reversal of 13554023550 is 5532045531.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1265317 + ... + 1275983.

It is an arithmetic number, because the mean of its divisors is an integer number (360141012).

Almost surely, 2^13554023550 is an apocalyptic number.

13554023550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13554023550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17286768576).

13554023550 is an abundant number, since it is smaller than the sum of its proper divisors (21019513602).

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

13554023550 is a wasteful number, since it uses less digits than its factorization.

13554023550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10922 (or 10917 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 13554023550 in words is "thirteen billion, five hundred fifty-four million, twenty-three thousand, five hundred fifty".