30091055 has 8 divisors (see below), whose sum is σ = 36146544. Its totient is φ = 24048000.

The previous prime is 30091043. The next prime is 30091057. The reversal of 30091055 is 55019003.

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

It is not a de Polignac number, because 30091055 - 2¹⁰ = 30090031 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 30091055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30091057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3500 + ... + 8510.

It is an arithmetic number, because the mean of its divisors is an integer number (4518318).

Almost surely, 2^30091055 is an apocalyptic number.

30091055 is a deficient number, since it is larger than the sum of its proper divisors (6055489).

30091055 is a wasteful number, since it uses less digits than its factorization.

30091055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 30091055 is about 5485.5314236635. The cubic root of 30091055 is about 311.0372986975.

The spelling of 30091055 in words is "thirty million, ninety-one thousand, fifty-five".