30055580 has 24 divisors (see below), whose sum is σ = 63745920. Its totient is φ = 11902400.

The previous prime is 30055579. The next prime is 30055589. The reversal of 30055580 is 8555003.

It is a super-3 number, since 3×30055580³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055589) 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, 5420 + ... + 9459.

It is an arithmetic number, because the mean of its divisors is an integer number (2656080).

Almost surely, 2^30055580 is an apocalyptic number.

It is an amenable number.

30055580 is an abundant number, since it is smaller than the sum of its proper divisors (33690340).

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

30055580 is a wasteful number, since it uses less digits than its factorization.

30055580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14989 (or 14987 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 30055580 is about 5482.2969638647. The cubic root of 30055580 is about 310.9150210848.

The spelling of 30055580 in words is "thirty million, fifty-five thousand, five hundred eighty".