53130305 has 4 divisors (see below), whose sum is σ = 63756372. Its totient is φ = 42504240.

The previous prime is 53130281. The next prime is 53130317. The reversal of 53130305 is 50303135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50303135 = 5 ⋅10060627.

It can be written as a sum of positive squares in 2 ways, for example, as 18931201 + 34199104 = 4351^2 + 5848^2 .

It is not a de Polignac number, because 53130305 - 2¹⁰ = 53129281 is a prime.

It is a super-3 number, since 3×53130305³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5313026 + ... + 5313035.

It is an arithmetic number, because the mean of its divisors is an integer number (15939093).

Almost surely, 2^53130305 is an apocalyptic number.

It is an amenable number.

53130305 is a deficient number, since it is larger than the sum of its proper divisors (10626067).

53130305 is a wasteful number, since it uses less digits than its factorization.

53130305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10626066.

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

The square root of 53130305 is about 7289.0537794696. The cubic root of 53130305 is about 375.9361617325.

It can be divided in two parts, 53130 and 305, that added together give a palindrome (53435).

The spelling of 53130305 in words is "fifty-three million, one hundred thirty thousand, three hundred five".