30900255 has 16 divisors (see below), whose sum is σ = 49541760. Its totient is φ = 16446368.

The previous prime is 30900229. The next prime is 30900257. The reversal of 30900255 is 55200903.

It is a cyclic number.

It is not a de Polignac number, because 30900255 - 2⁷ = 30900127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30900257) 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 15 ways as a sum of consecutive naturals, for example, 6616 + ... + 10274.

It is an arithmetic number, because the mean of its divisors is an integer number (3096360).

Almost surely, 2^30900255 is an apocalyptic number.

30900255 is a deficient number, since it is larger than the sum of its proper divisors (18641505).

30900255 is a wasteful number, since it uses less digits than its factorization.

30900255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 30900255 is about 5558.7997805282. The cubic root of 30900255 is about 313.8007817149.

The spelling of 30900255 in words is "thirty million, nine hundred thousand, two hundred fifty-five".