30030855 has 16 divisors (see below), whose sum is σ = 48159744. Its totient is φ = 15979680.

The previous prime is 30030853. The next prime is 30030859. The reversal of 30030855 is 55803003.

It is not a de Polignac number, because 30030855 - 2¹ = 30030853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5250 + ... + 9360.

It is an arithmetic number, because the mean of its divisors is an integer number (3009984).

Almost surely, 2^30030855 is an apocalyptic number.

30030855 is a deficient number, since it is larger than the sum of its proper divisors (18128889).

30030855 is a wasteful number, since it uses less digits than its factorization.

30030855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 30030855 is about 5480.0415144413. The cubic root of 30030855 is about 310.8297403832.

Adding to 30030855 its reverse (55803003), we get a palindrome (85833858).

The spelling of 30030855 in words is "thirty million, thirty thousand, eight hundred fifty-five".