30885055 has 4 divisors (see below), whose sum is σ = 37062072. Its totient is φ = 24708040.

The previous prime is 30885037. The next prime is 30885097. The reversal of 30885055 is 55058803.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30885055 - 2⁷ = 30884927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30885055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088501 + ... + 3088510.

It is an arithmetic number, because the mean of its divisors is an integer number (9265518).

Almost surely, 2^30885055 is an apocalyptic number.

30885055 is a deficient number, since it is larger than the sum of its proper divisors (6177017).

30885055 is an equidigital number, since it uses as much as digits as its factorization.

30885055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177016.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 30885055 is about 5557.4324107451. The cubic root of 30885055 is about 313.7493198506.

The spelling of 30885055 in words is "thirty million, eight hundred eighty-five thousand, fifty-five".