30050550 has 72 divisors (see below), whose sum is σ = 82666584. Its totient is φ = 7822080.

The previous prime is 30050519. The next prime is 30050551. The reversal of 30050550 is 5505003.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30050551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18574 + ... + 20126.

It is an arithmetic number, because the mean of its divisors is an integer number (1148147).

Almost surely, 2^30050550 is an apocalyptic number.

30050550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30050550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41333292).

30050550 is an abundant number, since it is smaller than the sum of its proper divisors (52616034).

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

30050550 is a wasteful number, since it uses less digits than its factorization.

30050550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The square root of 30050550 is about 5481.8381953502. The cubic root of 30050550 is about 310.8976755558.

Adding to 30050550 its reverse (5505003), we get a palindrome (35555553).

The spelling of 30050550 in words is "thirty million, fifty thousand, five hundred fifty".