3217650005550 has 24 divisors (see below), whose sum is σ = 7979772014136. Its totient is φ = 858040001440.

The previous prime is 3217650005483. The next prime is 3217650005551. The reversal of 3217650005550 is 555000567123.

It is a junction number, because it is equal to n+sod(n) for n = 3217650005499 and 3217650005508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3217650005551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10725499869 + ... + 10725500168.

It is an arithmetic number, because the mean of its divisors is an integer number (332490500589).

Almost surely, 2^{3217650005550} is an apocalyptic number.

3217650005550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3217650005550 is an abundant number, since it is smaller than the sum of its proper divisors (4762122008586).

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

3217650005550 is a wasteful number, since it uses less digits than its factorization.

3217650005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21451000052 (or 21451000047 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 39.

The spelling of 3217650005550 in words is "three trillion, two hundred seventeen billion, six hundred fifty million, five thousand, five hundred fifty".