30530055503 has 4 divisors (see below), whose sum is σ = 31179631200. Its totient is φ = 29880479808.

The previous prime is 30530055431. The next prime is 30530055509. The reversal of 30530055503 is 30555003503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30555003503 = 19051 ⋅1603853.

It is a cyclic number.

It is not a de Polignac number, because 30530055503 - 2¹⁶ = 30529989967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30530055509) 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 3 ways as a sum of consecutive naturals, for example, 324787778 + ... + 324787871.

It is an arithmetic number, because the mean of its divisors is an integer number (7794907800).

Almost surely, 2^30530055503 is an apocalyptic number.

30530055503 is a deficient number, since it is larger than the sum of its proper divisors (649575697).

30530055503 is an equidigital number, since it uses as much as digits as its factorization.

30530055503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649575696.

The product of its (nonzero) digits is 16875, while the sum is 29.

The spelling of 30530055503 in words is "thirty billion, five hundred thirty million, fifty-five thousand, five hundred three".