30053205 has 96 divisors (see below), whose sum is σ = 66044160. Its totient is φ = 12303360.

The previous prime is 30053201. The next prime is 30053207. The reversal of 30053205 is 50235003.

30053205 = 39² + 40² + ... + 448².

It is not a de Polignac number, because 30053205 - 2² = 30053201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30053201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 167806 + ... + 167984.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^30053205 is an apocalyptic number.

30053205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30053205 is an abundant number, since it is smaller than the sum of its proper divisors (35990955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30053205 is a wasteful number, since it uses less digits than its factorization.

30053205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 30053205 is about 5482.0803532965. The cubic root of 30053205 is about 310.9068313396.

Adding to 30053205 its reverse (50235003), we get a palindrome (80288208).

The spelling of 30053205 in words is "thirty million, fifty-three thousand, two hundred five".