4350221255550 has 96 divisors (see below), whose sum is σ = 11542537480320. Its totient is φ = 1080986774400.

The previous prime is 4350221255533. The next prime is 4350221255557. The reversal of 4350221255550 is 555521220534.

It is a junction number, because it is equal to n+sod(n) for n = 4350221255499 and 4350221255508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4350221255557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12337572 + ... + 12685271.

It is an arithmetic number, because the mean of its divisors is an integer number (120234765420).

Almost surely, 2^{4350221255550} is an apocalyptic number.

4350221255550 is an abundant number, since it is smaller than the sum of its proper divisors (7192316224770).

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

4350221255550 is a wasteful number, since it uses less digits than its factorization.

4350221255550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25022938 (or 25022933 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 4350221255550 in words is "four trillion, three hundred fifty billion, two hundred twenty-one million, two hundred fifty-five thousand, five hundred fifty".