30255580 has 96 divisors (see below), whose sum is σ = 72503424. Its totient is φ = 10543104.

The previous prime is 30255569. The next prime is 30255583. The reversal of 30255580 is 8555203.

It is a super-3 number, since 3×30255580³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30255583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 414424 + ... + 414496.

It is an arithmetic number, because the mean of its divisors is an integer number (755244).

Almost surely, 2^30255580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30255580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36251712).

30255580 is an abundant number, since it is smaller than the sum of its proper divisors (42247844).

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

30255580 is a wasteful number, since it uses less digits than its factorization.

30255580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 30255580 is about 5500.5072493362. The cubic root of 30255580 is about 311.6031415930.

The spelling of 30255580 in words is "thirty million, two hundred fifty-five thousand, five hundred eighty".