30005055503 has 2 divisors, whose sum is σ = 30005055504. Its totient is φ = 30005055502.

The previous prime is 30005055499. The next prime is 30005055529. The reversal of 30005055503 is 30555050003.

It is an a-pointer prime, because the next prime (30005055529) can be obtained adding 30005055503 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30005055503 - 2² = 30005055499 is a prime.

It is a super-2 number, since 2×30005055503² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30005055103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15002527751 + 15002527752.

It is an arithmetic number, because the mean of its divisors is an integer number (15002527752).

Almost surely, 2^30005055503 is an apocalyptic number.

30005055503 is a deficient number, since it is larger than the sum of its proper divisors (1).

30005055503 is an equidigital number, since it uses as much as digits as its factorization.

30005055503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5625, while the sum is 26.

It can be divided in two parts, 300050 and 55503, that added together give a palindrome (355553).

The spelling of 30005055503 in words is "thirty billion, five million, fifty-five thousand, five hundred three".