30553520000 has 160 divisors (see below), whose sum is σ = 80068276200. Its totient is φ = 11577600000.

The previous prime is 30553519991. The next prime is 30553520003. The reversal of 30553520000 is 2535503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30553520003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1509950 + ... + 1530050.

Almost surely, 2^30553520000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30553520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40034138100).

30553520000 is an abundant number, since it is smaller than the sum of its proper divisors (49514756200).

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

30553520000 is an equidigital number, since it uses as much as digits as its factorization.

30553520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20154 (or 20127 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 23.

The spelling of 30553520000 in words is "thirty billion, five hundred fifty-three million, five hundred twenty thousand".