30105255 has 16 divisors (see below), whose sum is σ = 48612960. Its totient is φ = 15907968.

The previous prime is 30105209. The next prime is 30105307. The reversal of 30105255 is 55250103.

It is not a de Polignac number, because 30105255 - 2¹⁰ = 30104231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7572 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (3038310).

Almost surely, 2^30105255 is an apocalyptic number.

30105255 is a deficient number, since it is larger than the sum of its proper divisors (18507705).

30105255 is a wasteful number, since it uses less digits than its factorization.

30105255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18530.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 30105255 is about 5486.8255849808. The cubic root of 30105255 is about 311.0862172778.

Adding to 30105255 its reverse (55250103), we get a palindrome (85355358).

The spelling of 30105255 in words is "thirty million, one hundred five thousand, two hundred fifty-five".