30321055552550 has 24 divisors (see below), whose sum is σ = 64453900946736. Its totient is φ = 10395790475040.

The previous prime is 30321055552549. The next prime is 30321055552553. The reversal of 30321055552550 is 5525555012303.

It is a junction number, because it is equal to n+sod(n) for n = 30321055552498 and 30321055552507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321055552553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43315793297 + ... + 43315793996.

It is an arithmetic number, because the mean of its divisors is an integer number (2685579206114).

Almost surely, 2^{30321055552550} is an apocalyptic number.

30321055552550 is an abundant number, since it is smaller than the sum of its proper divisors (34132845394186).

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

30321055552550 is a wasteful number, since it uses less digits than its factorization.

30321055552550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86631587312 (or 86631587307 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 41.

The spelling of 30321055552550 in words is "thirty trillion, three hundred twenty-one billion, fifty-five million, five hundred fifty-two thousand, five hundred fifty".