30055885 has 8 divisors (see below), whose sum is σ = 36198936. Its totient is φ = 23956800.

The previous prime is 30055873. The next prime is 30055897. The reversal of 30055885 is 58855003.

It is an interprime number because it is at equal distance from previous prime (30055873) and next prime (30055897).

It can be written as a sum of positive squares in 4 ways, for example, as 3697929 + 26357956 = 1923^2 + 5134^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30055885 - 2⁷ = 30055757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30055885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9466 + ... + 12235.

It is an arithmetic number, because the mean of its divisors is an integer number (4524867).

Almost surely, 2^30055885 is an apocalyptic number.

It is an amenable number.

30055885 is a deficient number, since it is larger than the sum of its proper divisors (6143051).

30055885 is a wasteful number, since it uses less digits than its factorization.

30055885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21983.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 30055885 is about 5482.3247806017. The cubic root of 30055885 is about 310.9160727893.

The spelling of 30055885 in words is "thirty million, fifty-five thousand, eight hundred eighty-five".