53500345 has 4 divisors (see below), whose sum is σ = 64200420. Its totient is φ = 42800272.

The previous prime is 53500339. The next prime is 53500393. The reversal of 53500345 is 54300535.

It is a happy number.

53500345 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 39639616 + 13860729 = 6296^2 + 3723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53500345 is a prime.

It is an unprimeable number.

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, 5350030 + ... + 5350039.

It is an arithmetic number, because the mean of its divisors is an integer number (16050105).

Almost surely, 2^53500345 is an apocalyptic number.

It is an amenable number.

53500345 is a deficient number, since it is larger than the sum of its proper divisors (10700075).

53500345 is a wasteful number, since it uses less digits than its factorization.

53500345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10700074.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 53500345 is about 7314.3930028404. The cubic root of 53500345 is about 376.8069121249.

The spelling of 53500345 in words is "fifty-three million, five hundred thousand, three hundred forty-five".