30112055 has 12 divisors (see below), whose sum is σ = 38103960. Its totient is φ = 22781232.

The previous prime is 30112051. The next prime is 30112057. The reversal of 30112055 is 55021103.

It is not a de Polignac number, because 30112055 - 2² = 30112051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53204 + ... + 53766.

It is an arithmetic number, because the mean of its divisors is an integer number (3175330).

Almost surely, 2^30112055 is an apocalyptic number.

30112055 is a deficient number, since it is larger than the sum of its proper divisors (7991905).

30112055 is an frugal number, since it uses more digits than its factorization.

30112055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 30112055 is about 5487.4452161274. The cubic root of 30112055 is about 311.1096376300.

Adding to 30112055 its reverse (55021103), we get a palindrome (85133158).

The spelling of 30112055 in words is "thirty million, one hundred twelve thousand, fifty-five".