53008013 has 4 divisors (see below), whose sum is σ = 54440700. Its totient is φ = 51575328.

The previous prime is 53008009. The next prime is 53008037. The reversal of 53008013 is 31080035.

53008013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50438404 + 2569609 = 7102^2 + 1603^2 .

It is a cyclic number.

It is not a de Polignac number, because 53008013 - 2² = 53008009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53008213) 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 3 ways as a sum of consecutive naturals, for example, 716288 + ... + 716361.

It is an arithmetic number, because the mean of its divisors is an integer number (13610175).

Almost surely, 2^53008013 is an apocalyptic number.

It is an amenable number.

53008013 is a deficient number, since it is larger than the sum of its proper divisors (1432687).

53008013 is a wasteful number, since it uses less digits than its factorization.

53008013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432686.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 53008013 is about 7280.6602035804. The cubic root of 53008013 is about 375.6475047309.

Adding to 53008013 its reverse (31080035), we get a palindrome (84088048).

The spelling of 53008013 in words is "fifty-three million, eight thousand, thirteen".