30020300550 has 36 divisors (see below), whose sum is σ = 80654542020. Its totient is φ = 8005413360.

The previous prime is 30020300543. The next prime is 30020300579. The reversal of 30020300550 is 5500302003.

It is a super-2 number, since 2×30020300550² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33355440 + ... + 33356339.

It is an arithmetic number, because the mean of its divisors is an integer number (2240403945).

Almost surely, 2^30020300550 is an apocalyptic number.

30020300550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30020300550 is an abundant number, since it is smaller than the sum of its proper divisors (50634241470).

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

30020300550 is a wasteful number, since it uses less digits than its factorization.

30020300550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66711797 (or 66711789 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

Adding to 30020300550 its reverse (5500302003), we get a palindrome (35520602553).

The spelling of 30020300550 in words is "thirty billion, twenty million, three hundred thousand, five hundred fifty".