53097813 has 12 divisors (see below), whose sum is σ = 76833900. Its totient is φ = 35335296.

The previous prime is 53097773. The next prime is 53097833. The reversal of 53097813 is 31879035.

53097813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26811684 + 26286129 = 5178^2 + 5127^2 .

It is not a de Polignac number, because 53097813 - 2¹⁷ = 52966741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53097833) 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 11 ways as a sum of consecutive naturals, for example, 363 + ... + 10311.

It is an arithmetic number, because the mean of its divisors is an integer number (6402825).

Almost surely, 2^53097813 is an apocalyptic number.

It is an amenable number.

53097813 is a deficient number, since it is larger than the sum of its proper divisors (23736087).

53097813 is a wasteful number, since it uses less digits than its factorization.

53097813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10548 (or 10545 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 53097813 is about 7286.8246170743. The cubic root of 53097813 is about 375.8595111365.

The spelling of 53097813 in words is "fifty-three million, ninety-seven thousand, eight hundred thirteen".