30555272 has 32 divisors (see below), whose sum is σ = 62748000. Its totient is φ = 13833600.

The previous prime is 30555253. The next prime is 30555277. The reversal of 30555272 is 27255503.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (30555277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28604 + ... + 29652.

It is an arithmetic number, because the mean of its divisors is an integer number (1960875).

Almost surely, 2^30555272 is an apocalyptic number.

It is an amenable number.

30555272 is an abundant number, since it is smaller than the sum of its proper divisors (32192728).

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

30555272 is a wasteful number, since it uses less digits than its factorization.

30555272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 30555272 is about 5527.6823353011. The cubic root of 30555272 is about 312.6286088240.

The spelling of 30555272 in words is "thirty million, five hundred fifty-five thousand, two hundred seventy-two".