30055005 has 24 divisors (see below), whose sum is σ = 52954200. Its totient is φ = 15765120.

The previous prime is 30055001. The next prime is 30055021. The reversal of 30055005 is 50055003.

It can be written as a sum of positive squares in 4 ways, for example, as 1954404 + 28100601 = 1398^2 + 5301^2 .

It is not a de Polignac number, because 30055005 - 2² = 30055001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2730 + ... + 8219.

It is an arithmetic number, because the mean of its divisors is an integer number (2206425).

Almost surely, 2^30055005 is an apocalyptic number.

It is an amenable number.

30055005 is a deficient number, since it is larger than the sum of its proper divisors (22899195).

30055005 is a wasteful number, since it uses less digits than its factorization.

30055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11021 (or 11018 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The square root of 30055005 is about 5482.2445220913. The cubic root of 30055005 is about 310.9130383440.

The spelling of 30055005 in words is "thirty million, fifty-five thousand, five".