30055272 has 32 divisors (see below), whose sum is σ = 80918880. Its totient is φ = 9247680.

The previous prime is 30055253. The next prime is 30055279. The reversal of 30055272 is 27255003.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30055279) 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 7 ways as a sum of consecutive naturals, for example, 47854 + ... + 48477.

It is an arithmetic number, because the mean of its divisors is an integer number (2528715).

Almost surely, 2^30055272 is an apocalyptic number.

It is an amenable number.

30055272 is an abundant number, since it is smaller than the sum of its proper divisors (50863608).

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

30055272 is a wasteful number, since it uses less digits than its factorization.

30055272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96353 (or 96349 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30055272 is about 5482.2688733772. The cubic root of 30055272 is about 310.9139590285.

The spelling of 30055272 in words is "thirty million, fifty-five thousand, two hundred seventy-two".