30305053 has 8 divisors (see below), whose sum is σ = 31791168. Its totient is φ = 28833024.

The previous prime is 30305039. The next prime is 30305059. The reversal of 30305053 is 35050303.

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

It is a cyclic number.

It is not a de Polignac number, because 30305053 - 2²¹ = 28207901 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 30305053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30305059) 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, 1026 + ... + 7852.

It is an arithmetic number, because the mean of its divisors is an integer number (3973896).

Almost surely, 2^30305053 is an apocalyptic number.

It is an amenable number.

30305053 is a deficient number, since it is larger than the sum of its proper divisors (1486115).

30305053 is a wasteful number, since it uses less digits than its factorization.

30305053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043.

The product of its (nonzero) digits is 675, while the sum is 19.

The square root of 30305053 is about 5505.0025431420. The cubic root of 30305053 is about 311.7728904161.

Adding to 30305053 its reverse (35050303), we get a palindrome (65355356).

The spelling of 30305053 in words is "thirty million, three hundred five thousand, fifty-three".