13933785550 has 12 divisors (see below), whose sum is σ = 25916841216. Its totient is φ = 5573514200.

The previous prime is 13933785517. The next prime is 13933785553. The reversal of 13933785550 is 5558733931.

It is a junction number, because it is equal to n+sod(n) for n = 13933785494 and 13933785503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13933785553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139337806 + ... + 139337905.

It is an arithmetic number, because the mean of its divisors is an integer number (2159736768).

Almost surely, 2^13933785550 is an apocalyptic number.

13933785550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13933785550 is a deficient number, since it is larger than the sum of its proper divisors (11983055666).

13933785550 is a wasteful number, since it uses less digits than its factorization.

13933785550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278675723 (or 278675718 counting only the distinct ones).

The product of its (nonzero) digits is 1701000, while the sum is 49.

The spelling of 13933785550 in words is "thirteen billion, nine hundred thirty-three million, seven hundred eighty-five thousand, five hundred fifty".