30255500 has 48 divisors (see below), whose sum is σ = 72098208. Its totient is φ = 11000000.

The previous prime is 30255487. The next prime is 30255503. The reversal of 30255500 is 555203.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (30255503) 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 15 ways as a sum of consecutive naturals, for example, 2750 + ... + 8250.

It is an arithmetic number, because the mean of its divisors is an integer number (1502046).

Almost surely, 2^30255500 is an apocalyptic number.

It is a pronic number, being equal to 5500×5501.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30255500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36049104).

30255500 is an abundant number, since it is smaller than the sum of its proper divisors (41842708).

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

30255500 is a wasteful number, since it uses less digits than its factorization.

30255500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531 (or 5519 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 30255500 is about 5500.4999772748. The cubic root of 30255500 is about 311.6028669520.

The spelling of 30255500 in words is "thirty million, two hundred fifty-five thousand, five hundred".