30020255 has 8 divisors (see below), whose sum is σ = 36065952. Its totient is φ = 23988448.

The previous prime is 30020251. The next prime is 30020257. The reversal of 30020255 is 55202003.

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

It is a cyclic number.

It is not a de Polignac number, because 30020255 - 2² = 30020251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020251) 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, 2102 + ... + 8028.

It is an arithmetic number, because the mean of its divisors is an integer number (4508244).

Almost surely, 2^30020255 is an apocalyptic number.

30020255 is a deficient number, since it is larger than the sum of its proper divisors (6045697).

30020255 is a wasteful number, since it uses less digits than its factorization.

30020255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6945.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 30020255 is about 5479.0742831248. The cubic root of 30020255 is about 310.7931648569.

Adding to 30020255 its reverse (55202003), we get a palindrome (85222258).

The spelling of 30020255 in words is "thirty million, twenty thousand, two hundred fifty-five".