30553421505621 has 16 divisors (see below), whose sum is σ = 46557684745728. Its totient is φ = 17459064226800.

The previous prime is 30553421505613. The next prime is 30553421505641. The reversal of 30553421505621 is 12650512435503.

It is not a de Polignac number, because 30553421505621 - 2³ = 30553421505613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30553421505641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13261906 + ... + 15394316.

It is an arithmetic number, because the mean of its divisors is an integer number (2909855296608).

Almost surely, 2^{30553421505621} is an apocalyptic number.

It is an amenable number.

30553421505621 is a deficient number, since it is larger than the sum of its proper divisors (16004263240107).

30553421505621 is a wasteful number, since it uses less digits than its factorization.

30553421505621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814712.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 30553421505621 in words is "thirty trillion, five hundred fifty-three billion, four hundred twenty-one million, five hundred five thousand, six hundred twenty-one".