503030055550 has 48 divisors (see below), whose sum is σ = 1020812570064. Its totient is φ = 182898720000.

The previous prime is 503030055497. The next prime is 503030055569. The reversal of 503030055550 is 55550030305.

It is a super-3 number, since 3×503030055550³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5133010 + ... + 5230090.

It is an arithmetic number, because the mean of its divisors is an integer number (21266928543).

Almost surely, 2^503030055550 is an apocalyptic number.

503030055550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

503030055550 is an abundant number, since it is smaller than the sum of its proper divisors (517782514514).

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

503030055550 is a wasteful number, since it uses less digits than its factorization.

503030055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106525 (or 106520 counting only the distinct ones).

The product of its (nonzero) digits is 28125, while the sum is 31.

Adding to 503030055550 its reverse (55550030305), we get a palindrome (558580085855).

The spelling of 503030055550 in words is "five hundred three billion, thirty million, fifty-five thousand, five hundred fifty".