30053513 has 6 divisors (see below), whose sum is σ = 34960266. Its totient is φ = 25760112.

The previous prime is 30053489. The next prime is 30053531. The reversal of 30053513 is 31535003.

It can be written as a sum of positive squares in only one way, i.e., 15976009 + 14077504 = 3997^2 + 3752^2 .

It is not a de Polignac number, because 30053513 - 2¹² = 30049417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30053113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306620 + ... + 306717.

It is an arithmetic number, because the mean of its divisors is an integer number (5826711).

Almost surely, 2^30053513 is an apocalyptic number.

It is an amenable number.

30053513 is a deficient number, since it is larger than the sum of its proper divisors (4906753).

30053513 is an equidigital number, since it uses as much as digits as its factorization.

30053513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613351 (or 613344 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 30053513 is about 5482.1084447501. The cubic root of 30053513 is about 310.9078934446.

Adding to 30053513 its reverse (31535003), we get a palindrome (61588516).

The spelling of 30053513 in words is "thirty million, fifty-three thousand, five hundred thirteen".